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True Lies by Sara Shepard, book cover

True Lies Summary

by Sara Shepard

3.82 Goodreads · 2k ratingsThriller130 pages12-min summary

A jilted teen queen bee navigates a summer of disappearing boyfriends, vengeful best friends, and a rival sister determined to steal her social crown.

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By BookBrief EditorialPublished March 2026How we write summaries

Synopsis

Covers the whole plot, including the ending.

Sutton Mercer's summer after junior year takes a dramatic turn when her secret boyfriend, Thayer Vega, vanishes and then abruptly breaks up with her. To spite him and move on, Sutton quickly starts dating Garrett Austin, the ex-boyfriend of her best friend, Charlotte. This move enrages Charlotte, who retaliates by demanding that Sutton's younger sister, Laurel, be initiated into their exclusive 'Lying Game' clique. To prevent Laurel's entry, Sutton is forced into a series of prank challenges against her sister. What starts as a seemingly easy task for Sutton quickly escalates as Laurel proves to be a formidable and cunning opponent, threatening Sutton's reign and position within the group. Sutton must navigate the complexities of her new relationship, the mystery surrounding Thayer's disappearance, and a fierce sibling rivalry to maintain her status and keep Laurel out of the Lying Game.
Difficulty
Easy
Pacing
Fast
Mood
Suspenseful, dramatic, intriguing, lighthearted (at times)

True Lies Plot Summary

Covers the whole plot, including the ending.

  1. The Disappearing Boyfriend

    The summer after junior year starts with Sutton Mercer's secret boyfriend, Thayer Vega, vanishing. They had been together for months, hiding their relationship because of their different social circles and potential disapproval from Sutton's twin sister, Emma, who is pretending to be Sutton. Sutton is upset and confused, trying to figure out where Thayer went and why he left without a word. She cannot reach him and feels abandoned and betrayed, all while keeping up the 'Sutton' act for the Lying Game and her friends. This sudden emptiness makes her vulnerable and leads to rash choices.

  2. A Call for 'Space'

    Weeks after he disappears, Thayer finally calls Sutton. Instead of an explanation or apology, he coldly tells her he needs 'space.' This vague statement leaves Sutton even angrier and more hurt. The call offers no closure, only making her feel more rejected and confused. She struggles to understand the Thayer she knew compared to this distant person. The short, cold call solidifies her decision to move on, even if it is a defensive reaction. This moment pushes her to seek a new relationship as a way to cope.

  3. Enter Garrett Austin

    Sutton quickly moves on to Garrett Austin, a charming new love interest. Garrett, a former boyfriend of Sutton's best friend Charlotte, quickly becomes Sutton's new partner. This new relationship immediately causes problems. Charlotte, despite having broken up with Garrett, is annoyed and feels betrayed by Sutton's choice. This creates new tension within the Lying Game group, especially between Sutton and Charlotte. Sutton's decision to date Garrett is impulsive; she wants to get over Thayer and assert her independence.

  4. Charlotte's Demand

    Charlotte, feeling ignored by Sutton's relationship with Garrett, demands that Sutton's younger sister, Laurel, be allowed into the Lying Game group. This challenges Sutton's role as the group's leader and her control over membership. Sutton has always protected the Lying Game's exclusivity and thought Laurel was too young and naive to join. Charlotte's demand is a power play, meant to undermine Sutton and change the group's dynamic. Sutton is in a difficult spot, as refusing Charlotte could further strain their friendship and Lying Game loyalty.

  5. The Initiation Challenge

    To keep Laurel out of the Lying Game, Sutton must participate in a series of prank challenges against her sister. The rule is that Sutton, as the leader, must prove her superiority by outdoing Laurel. If Sutton wins, Laurel stays out; if Laurel wins, she joins. Sutton initially thinks this will be easy, underestimating Laurel's cleverness. The challenges test their wit, creativity, and ability to plan deceptions, all while the Lying Game members watch. This competition adds sibling rivalry and conflict.

  6. Laurel's Unexpected Cunning

    To Sutton's surprise and frustration, Laurel is a tougher opponent than expected. Laurel, often seen as the younger, less experienced sister, shows surprising cleverness in her pranks. She pulls off stunts that genuinely challenge Sutton, showing she is a potential threat to Sutton's position. Sutton's confidence wavers as Laurel's tricks become more elaborate and effective. This forces Sutton to take the competition seriously and face the possibility that her dominance in the Lying Game could be threatened by her own sister.

  7. Escalating Sibling Rivalry

    As the Lying Game challenges intensify, so does the sibling rivalry between Sutton and Laurel. What started as pranks becomes a more intense competition, fueled by old resentments and a desire for recognition. The pranks become more personal, touching on insecurities and past issues. Sutton feels her authority is challenged, while Laurel sees a chance to step out of her sister's shadow. The Lying Game members watch, some secretly rooting for Laurel, which increases Sutton's paranoia. The stakes become higher than just club membership; it is about family and pride.

  8. The Weight of Deception

    Throughout the prank challenges and her new relationship, Sutton struggles with her many deceptions. She is trying to win the Lying Game challenges against Laurel, maintain the illusion of 'Sutton' (who is Emma), navigate her rebound relationship with Garrett, and deal with the lingering pain from Thayer's disappearance. The constant need to lie takes a toll, making her isolated and paranoid. The pressure to keep her secrets, especially her true identity, becomes immense. Her emotional state is fragile, and her actions become more desperate as the truth threatens to emerge.

  9. A Glimmer of the Truth

    Amidst the Lying Game chaos and her new romance, subtle clues appear about Thayer's disappearance. These hints suggest that his 'need for space' might hide something more complex. Sutton (Emma) starts to question the story she was given and wonders if Thayer was involved in something dangerous or forced to leave. Her initial anger turns into a suspicion that there is more to his story. These details add mystery and danger, suggesting Thayer's absence is tied to the larger secrets of the Lying Game and Sutton's true fate.

  10. The Lying Game's True Nature

    The escalating prank challenges between Sutton and Laurel, driven by Charlotte, reveal the darker, manipulative side of the Lying Game. The 'fun' pranks quickly turn into cruel acts of psychological warfare, showing the true nature of the group and its members' willingness to betray each other. Sutton realizes her position as queen is constantly threatened, not just by Laurel but by the instability of the game itself. The Lying Game is not harmless fun; it is a dangerous environment where loyalty is fleeting and secrets are weapons, mirroring the threats that led to the original Sutton's death.

True Lies Characters

Sutton Mercer (Emma Paxton)

Protagonist

The twin sister impersonating Sutton, navigating a complex web of lies.

Emma Paxton is the true protagonist, thrust into the role of her deceased twin sister, Sutton Mercer. Initially an outsider, Emma must quickly adapt to Sutton's privileged, complex, and often cruel world, including her friendships, rivalries, and secret relationships. She is intelligent, resourceful, and possesses a strong moral compass, often struggling with the morally ambiguous actions required to maintain Sutton's facade. Emma is constantly balancing her desire to uncover the truth about Sutton's murder with the need to protect herself and maintain the intricate lies of the Lying Game. Her internal conflict between her true self and the persona she inhabits is central to her character.

Relationships: Thayer Vega (secret boyfriend (Sutton's), source of confusion); Garrett Austin (rebound boyfriend (Sutton's), new romantic interest); Laurel Mercer (younger sister, rival in challenges); Charlotte Chamberlain (best friend, rival, co-conspirator); Madeline Vega (friend, Thayer's sister)

Thayer Vega

Supporting

Sutton's mysterious, vanished secret boyfriend.

Thayer Vega is Sutton's secret boyfriend whose sudden disappearance kicks off much of the plot's initial mystery and Sutton's emotional turmoil. He is portrayed as somewhat enigmatic, with a hidden life that prevents him from being open about his relationship with Sutton. His brief, cold call to Sutton, stating he needs 'space,' only deepens the mystery surrounding him. Thayer represents the unresolved past and the dangerous secrets connected to Sutton's original life and, potentially, her death. His absence creates a void that Sutton attempts to fill, leading to further complications within her social circle and the Lying Game.

Relationships: Sutton Mercer (secret boyfriend); Madeline Vega (sister)

Garrett Austin

Supporting

Sutton's rebound boyfriend, formerly Charlotte's.

Garrett Austin is introduced as Sutton's new romantic interest, a rebound from Thayer's disappearance. He is charming and readily available, providing Sutton with a distraction and a sense of normalcy amidst the chaos of her life. However, his previous relationship with Charlotte, Sutton's best friend, immediately creates tension and jealousy within the Lying Game clique. Garrett represents the immediate gratification Sutton seeks to cope with her emotional pain and the complications that arise when romantic relationships intersect with established social dynamics and rivalries. He is somewhat oblivious to the deeper machinations of the Lying Game, serving as a catalyst for Charlotte's retaliatory actions.

Relationships: Sutton Mercer (rebound boyfriend); Charlotte Chamberlain (ex-boyfriend)

Charlotte Chamberlain

Supporting

Sutton's best friend and rival within the Lying Game.

Charlotte Chamberlain is one of Sutton's closest friends and a key member of the Lying Game. She is competitive, possessive, and easily slighted, especially when it comes to relationships and social standing. Her annoyance with Sutton dating her ex-boyfriend, Garrett, drives her to demand Laurel's admission into the Lying Game, setting off the central conflict of the prank challenges. Charlotte is a master manipulator within the game, using her influence and knowledge of the group's dynamics to achieve her own ends. She embodies the cutthroat nature of the Lying Game, where friendships are conditional and loyalty is often secondary to personal gain.

Relationships: Sutton Mercer (best friend, rival); Garrett Austin (ex-boyfriend); Laurel Mercer (ally against Sutton)

Laurel Mercer

Supporting

Sutton's younger sister, determined to join the Lying Game.

Laurel Mercer is Sutton's younger sister, initially seen as naive and eager to join the exclusive Lying Game clique. She is often underestimated by Sutton and the other members, but she possesses a surprising cunning and determination. Laurel's desire to be part of the Lying Game, fueled by Charlotte, puts her in direct competition with Sutton in a series of prank challenges. This rivalry reveals her intelligence and resourcefulness, proving she is not just a tag-along but a legitimate threat to Sutton's dominance. Her character highlights the intense sibling dynamics and the lengths to which individuals will go for acceptance and recognition.

Relationships: Sutton Mercer (older sister, rival); Charlotte Chamberlain (ally)

Madeline Vega

Supporting

Thayer's sister and a member of the Lying Game.

Madeline Vega is Thayer's sister and another member of the Lying Game. She is connected to the mystery surrounding Thayer's disappearance and her brother's secret life. Madeline provides a link to Thayer and potentially holds clues about his whereabouts or the reasons for his sudden departure. As a member of the Lying Game, she is privy to the group's secrets and participates in their activities, though her primary role often involves her connection to Thayer and the broader mystery. Her presence reminds Sutton (Emma) of the unresolved issues surrounding Thayer and adds another layer of complexity to the social dynamics.

Relationships: Thayer Vega (brother); Sutton Mercer (friend)

True Lies Themes

Identity and Deception

The main theme is Emma's effort to maintain Sutton's identity while finding the truth. Every interaction, relationship, and Lying Game prank involves deception. The theme explores how identity can be created, manipulated, and lost, not only for Emma but for all characters who hide their true selves. It questions how authentic relationships built on lies are and the psychological cost of living a fabricated life. The Lying Game itself represents the widespread deception that defines their world.

“Every secret was a brick, and the wall around her was getting higher and higher.”
Narrator (referring to Emma/Sutton)

Sibling Rivalry and Loyalty

The intense competition between Sutton (Emma) and Laurel for a place in the Lying Game group shows the complex dynamics of sibling rivalry. This theme explores the conflict between family loyalty and personal ambition, and the desire for individual recognition. It looks at the resentments and jealousies that can exist between siblings, especially when one lives in the shadow of the other. The Lying Game challenges test these emotions, forcing both sisters to confront their feelings and the limits of their loyalty.

“Being sisters didn't mean you automatically liked each other. Sometimes it meant you knew exactly how to hurt each other.”
Narrator (referring to Sutton and Laurel)

Manipulation and Power

The Lying Game is about manipulation and the pursuit of power within a social hierarchy. Characters constantly use deception, secrets, and strategy to gain an advantage, whether it's Charlotte manipulating Sutton into a prank war or Sutton trying to keep her 'queen' status. This theme explores how individuals control others, often through psychological means, and the corrupting effect of power within a closed group. It shows the dark side of seemingly harmless games, where the line between play and malice blurs, and friendships are sacrificed for social standing.

“The Lying Game wasn't just about pranks; it was about knowing who held the cards, and when to play them.”
Narrator

Loss and Abandonment

Sutton's (Emma's) initial emotional state is shaped by the loss of Thayer and feeling abandoned, which pushes her into a rebound relationship. This theme explores the impact of unexpected loss and how people cope with rejection and betrayal. It touches on the vulnerability that comes with emotional wounds and the desperate measures people take to fill a void or protect themselves from further hurt. Thayer's disappearance is a catalyst for Sutton's emotional journey, showing the pain of unresolved goodbyes and the lingering questions they leave behind.

“His absence was a raw wound, and every attempt to heal it only seemed to tear it open again.”
Narrator (referring to Sutton's feelings about Thayer)

Plot Devices & Literary Techniques

Mistaken Identity

Emma impersonating Sutton, the core of the series.

The entire premise of the 'True Lies' installment, and the broader series, hinges on the plot device of mistaken identity. Emma Paxton is living as her deceased twin sister, Sutton Mercer, creating a constant layer of deception and high stakes. This device allows for dramatic irony, as the reader knows Emma's true identity while other characters do not, leading to misunderstandings and heightened tension. It also provides Emma with a unique perspective, allowing her to uncover truths about Sutton's life and murder that a true outsider or even Sutton herself might not have seen. The maintenance of this identity is the driving force behind many of Emma's actions and fears.

The Lying Game

A series of elaborate pranks and deceptions.

The Lying Game itself functions as a central plot device, driving much of the immediate conflict. It is a secret club among Sutton and her friends, characterized by elaborate pranks, dares, and deceptions. In 'True Lies,' the game manifests as a direct competition between Sutton (Emma) and Laurel, escalating the sibling rivalry. This device not only provides a framework for the characters' interactions and conflicts but also serves as a metaphor for the deeper web of lies and manipulations that permeate their lives. The rules and challenges of the game reflect the characters' personalities and their willingness to deceive for social standing and personal gain.

The Vanishing Boyfriend

Thayer Vega's sudden disappearance as a mystery catalyst.

Thayer Vega's unexplained disappearance acts as a significant plot device, serving as a catalyst for Sutton's (Emma's) emotional turmoil and subsequent actions. His absence creates an immediate mystery that intertwines with the larger narrative of Sutton's murder. It pushes Sutton into a rebound relationship with Garrett, which in turn fuels Charlotte's resentment and triggers the Lying Game challenges. Thayer's 'need for space' is a vague and suspicious explanation, hinting at deeper secrets and dangers that connect to the overarching plot. His vanishing act ensures that the past remains unresolved and continues to influence the present events.

Quiz

10 questions on the plot and the characters. Each answer comes with a short explanation.

  1. Question 1

    What is the main genre of the book "True Lies"?

    1. Science Fiction
    2. Fantasy
    3. Thriller, Mystery, Young Adult, Romance
    4. Historical Fiction
    Show answer

    C. Thriller, Mystery, Young Adult, Romance The provided text explicitly states the genres as Thriller, Mystery, Young Adult, and Romance.

  2. Question 2

    Who disappears without a trace at the beginning of the summer?

    1. Sutton Mercer
    2. Garrett Austin
    3. Laurel Mercer
    4. Thayer Vega
    Show answer

    D. Thayer Vega The text states, "Sutton Mercer's world is turned upside down when her secret boyfriend, Thayer Vega, disappears without a trace."

  3. Question 3

    Why does Sutton start dating Garrett Austin?

    1. She genuinely falls in love with him.
    2. To make Thayer Vega jealous.
    3. To get over her last boyfriend, Thayer.
    4. Charlotte forces her to.
    Show answer

    C. To get over her last boyfriend, Thayer. The text says, "Furious, Sutton does what any jilted girl would do—she gets over her last boyfriend by finding a new one. And luckily Garrett Austin is happy to step up..."

  4. Question 4

    What is the main conflict between Sutton and her younger sister Laurel?

    1. Laurel wants to steal Sutton's boyfriend.
    2. Laurel is trying to get into the Lying Game clique.
    3. Laurel is dating Thayer Vega.
    4. Laurel is trying to expose Sutton's secrets.
    Show answer

    B. Laurel is trying to get into the Lying Game clique. The text explains, "Now an annoyed Charlotte is insisting that Sutton's younger sister, Laurel, be admitted to the Lying Game clique. If Sutton wants to keep Laurel out, she'll need to outdo her in a series of prank challenges."

  5. Question 5

    What does Thayer Vega say when he finally calls Sutton?

    1. He misses her and wants to see her.
    2. He needs "space."
    3. He is in trouble and needs help.
    4. He has found a new girlfriend.
    Show answer

    B. He needs "space." The text states, "When he finally calls, he says he needs 'space.'"

  6. Question 6

    Who used to date Garrett Austin before Sutton?

    1. Sutton's sister, Laurel
    2. Sutton's best friend, Charlotte
    3. Thayer Vega
    4. No one mentioned in the text
    Show answer

    B. Sutton's best friend, Charlotte The text mentions, "The only catch: Garrett used to date Sutton's best friend Charlotte."

  7. Question 7

    What is the 'Lying Game clique'?

    1. A group of students who cheat on tests.
    2. A secret society that plays elaborate pranks.
    3. A club for students who are good at deception.
    4. A group of friends who share secrets.
    Show answer

    B. A secret society that plays elaborate pranks. While not explicitly defined in detail, the context of "prank challenges" and Sutton wanting to "outdo" Laurel to keep her out suggests it's a competitive group involved in elaborate schemes or games.

  8. Question 8

    What does Sutton need to do to prevent Laurel from joining the Lying Game clique?

    1. Win a series of prank challenges against Laurel.
    2. Convince Charlotte to change her mind.
    3. Find out why Thayer disappeared.
    4. Break up with Garrett Austin.
    Show answer

    A. Win a series of prank challenges against Laurel. The text states, "If Sutton wants to keep Laurel out, she'll need to outdo her in a series of prank challenges."

  9. Question 9

    What is the underlying tension for Sutton at the start of the book?

    1. Her fear of her sister Laurel.
    2. The disappearance of her boyfriend and her subsequent actions.
    3. Her strained relationship with Charlotte.
    4. The pressure to get into the Lying Game clique.
    Show answer

    B. The disappearance of her boyfriend and her subsequent actions. The narrative begins with Thayer's disappearance and Sutton's immediate reaction of finding a new boyfriend, setting up the central conflicts involving her relationships and the clique.

  10. Question 10

    What does the phrase "Lying Game queen about to get overthrown by her not-so-loyal subjects" suggest about the book's plot?

    1. Sutton will successfully maintain her position in the clique.
    2. The book will focus on Thayer's return and reconciliation.
    3. Sutton's leadership or status within the clique is threatened by those around her.
    4. Laurel will easily win the prank challenges.
    Show answer

    C. Sutton's leadership or status within the clique is threatened by those around her. This phrase implies a challenge to Sutton's established dominance or position within the 'Lying Game' structure, suggesting internal conflict and potential dethronement by her peers or rivals.

True Lies FAQ

What is the plot of True Lies by Sara Shepard?

True Lies follows Sutton Mercer during the summer after junior year. Her secret boyfriend, Thayer Vega, disappears, leading her to find a new boyfriend, Garrett Austin. This causes friction with her best friend Charlotte and her younger sister Laurel, who wants to join Sutton's clique, leading to a series of pranks and challenges.

Who are the main characters in True Lies?

The main characters include Sutton Mercer, a high school student dealing with relationship drama and social challenges; Thayer Vega, Sutton's mysterious boyfriend; Garrett Austin, Sutton's new love interest; Charlotte, Sutton's best friend; and Laurel, Sutton's younger sister.

What genre is True Lies?

True Lies is a Young Adult novel that blends elements of thriller, mystery, and romance, with a focus on teen drama and secrets.

Is True Lies part of a series?

Yes, True Lies is part of Sara Shepard's 'The Lying Game' series, which features interconnected stories centered around the Mercer twins and their secrets.

What is the central conflict in True Lies?

The central conflict revolves around Sutton's secret relationship, the disappearance of her boyfriend, her new romance causing jealousy, and the rivalry with her sister Laurel over social standing and inclusion in a clique.

What are some themes explored in True Lies?

The book explores themes of secrets, lies, betrayal, friendship, sisterhood, jealousy, and the complexities of teenage relationships and social dynamics.

How does True Lies compare to other YA thrillers?

True Lies offers a blend of suspenseful plot twists and character-driven drama typical of YA thrillers, with a strong emphasis on the interpersonal relationships and rivalries of its young protagonists.

What kind of challenges do the characters face in True Lies?

The characters face emotional challenges related to love triangles and secret relationships, as well as social challenges involving rivalries and attempts to maintain or gain status within their peer group through pranks and competition.

Is there romance in True Lies?

Yes, romance is a significant element in True Lies, with Sutton navigating relationships with two different boys, Thayer Vega and Garrett Austin, and dealing with the romantic entanglements that arise.

Who would enjoy reading True Lies?

Readers who enjoy young adult fiction with elements of mystery, suspense, romance, and dramatic interpersonal conflicts, especially fans of Sara Shepard's other works, are likely to enjoy True Lies.

About the author

Sara Shepard

Sara Shepard

Sara Shepard is an American author known for her young adult fiction, particularly the "Pretty Little Liars" series, which includes titles such as "Flawless," "Unbelievable," "Never Have I Ever," and "Wanted." She also wrote "The Perfectionists," which explores themes of friendship and deception. Shepard's work often delves into the complexities of adolescence and the impact of secrets.

All 8 summaries of Sara Shepard's books →

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