Introduction
Let’s explore One of Us Is Lying Book Summary along with book review and a detailed analysis.One of Us Is Lying is a young adult mystery novel by Karen M. McManus, published in 2017. It follows five high school students who walk into detention, but only four come out alive. The story is told from the perspectives of the four remaining students, each of whom becomes a suspect in the murder of Simon Kelleher, a student known for running a gossip app that exposed his classmates’ secrets.

One of Us Is Lying- Details
- Title: One of Us Is Lying
- Author: Karen M. McManus
- Genre: Young Adult, Mystery, Thriller
- Published: May 30, 2017
- Publisher: Delacorte Press
- Setting: Bayview High School
- Main Characters:
- Bronwyn Rojas – The smart, rule-following student
- Nate Macauley – The bad boy with a troubled past
- Addy Prentiss – The popular girl with secrets
- Cooper Clay – The star athlete
- Simon Kelleher – The victim, who ran a gossip app
- Themes: Secrets, Truth, Social Pressure, Friendship, Identity
- Sequel: One of Us Is Next (2020)
One of Us Is Lying Book Summary
One of Us Is Lying is a thrilling young adult mystery novel by Karen M. McManus that keeps readers hooked from start to finish. The story takes place at Bayview High School, where five students walk into detention, but only four make it out alive.
The book introduces Bronwyn Rojas, the intelligent and ambitious student with dreams of getting into Yale; Nate Macauley, the school’s troublemaker and a drug dealer on probation; Addy Prentiss, the beautiful and seemingly perfect homecoming princess; Cooper Clay, a star baseball player with a bright future; and Simon Kelleher, the creator of a gossip app called About That, known for exposing students’ deepest secrets.
During detention, Simon suddenly collapses and dies from an allergic reaction. What seems like a tragic accident soon turns into a murder investigation when police discover that his death was no accident—his peanut allergy was triggered intentionally. Even more shocking, Simon was about to post a new update on his app, revealing dark secrets about Bronwyn, Nate, Addy, and Cooper. With Simon dead, the four remaining students instantly become suspects, and the media labels them “The Bayview Four.”
As the investigation goes on, secrets start spilling out. Bronwyn, the perfect student, cheated on a test. Nate, who was already in trouble with the law, continues his illegal activities. Addy, who is known as the perfect girlfriend, cheated on her boyfriend. Cooper, the baseball star, has a secret that could change his life. Each of them has a reason to want Simon’s app shut down, but would they go as far as murder?
Throughout the novel, the four students deal with intense media attention, friendships breaking apart, and the fear of being wrongly accused. As they try to clear their names, they also start bonding and uncovering shocking truths about Simon’s past. They realize that Simon had a twisted mind and a dangerous obsession with revenge. The truth behind his death is far darker than anyone expected.
With unexpected twists, deep character development, and a gripping storyline, One of Us Is Lying explores themes of secrets, truth, social pressure, and identity. The book keeps readers guessing until the final reveal, making it one of the most talked-about young adult thrillers in recent years.
If you love mystery novels with a mix of high school drama and suspense, this book is a must-read!
One of Us is Lying Book Review
aren M. McManus’s One of Us Is Lying is a compelling young adult mystery that artfully intertwines the lives of four high school students—Bronwyn, Nate, Addy, and Cooper—each representing a familiar archetype.he narrative kicks off with a gripping premise: five students enter detention, but only four emerge alive, thrusting the survivors into a complex web of suspicion and intrigue. cManus excels in character development, peeling back the layers of each individual to reveal vulnerabilities and secrets that challenge initial stereotypes.his depth allows readers to connect with the characters on a personal level, understanding their motivations and internal struggles.he alternating perspectives provide a multifaceted view of the unfolding events, maintaining suspense and encouraging readers to piece together the mystery alongside the protagonists. he novel’s pacing is brisk, with each chapter ending on a note that compels the reader to continue.hile some plot twists may be anticipated by astute readers, McManus manages to keep the narrative engaging through emotional depth and the exploration of pertinent themes such as identity, truth, and the pressures of adolescence. owever, the resolution may feel somewhat rushed to some, leaving certain character arcs yearning for more closure.espite this, One of Us Is Lying stands out as a thought-provoking exploration of high school dynamics, making it a standout in the young adult genre. n conclusion, McManus delivers a novel that is both entertaining and insightful, offering a fresh take on the classic whodunit by embedding it within the familiar yet complex world of high school.t’s a story that resonates, reminding readers that everyone has secrets, and sometimes, the truth is the most surprising revelation of all.
What happened in the end of One of Us Is Lying?
In One of Us Is Lying, it’s revealed that Simon orchestrated his own death with Jake’s assistance. Simon ingested peanut oil to induce an allergic reaction, planning to revive himself later. However, Jake withheld the EpiPen, leading to Simon’s death. Jake’s motive was to frame Addy, his girlfriend, for murder after discovering her infidelity. The plan unravels, and Jake is eventually apprehended.
What is the message of one of us is lying?
One of Us Is Lying* by Karen M. McManus delves into the destructive nature of gossip, secrets, and stereotypes within a high school setting.he novel illustrates how reliance on superficial labels can obscure the true complexity of individuals, leading to misunderstandings and harm.t also highlights the pervasive influence of social media, demonstrating how the spread of unverified information can damage reputations and relationships.ltimately, the story underscores the importance of looking beyond appearances to understand people’s genuine identities and the necessity of honesty and transparency in building trust.citeturn0search0turn0search1
Is one of us lying appropriate for 12 year olds?
“Is One of Us Lying” is suitable for 12-year-olds, but it contains mature themes like bullying and deceit, so it’s best for more mature readers in that age group. Parents may want to review it first.
What is the moral lesson of the book One of Us Is Lying?
The moral lesson of One of Us Is Lying is that things are not always as they seem. It teaches the importance of honesty, not judging others based on assumptions, and how secrets can have serious consequences. It also highlights the need for empathy and understanding, as everyone has their own struggles.