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How Does 'One Of Us Is Lying' End?

Without too many spoilers, can anyone summarize the final chapters of the 'One of Us Is Lying' novel? Still processing the big reveal's emotional payoff.
2025-06-19 05:11:59
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10 Answers

Best Answer
Cody De Leon
Cody De Leon
I'll try not to give away the end of the story for people who haven't read it, but suffice it to say that it's a well-structured murder mystery that delivers a surprising twist at the end that ties together a number of secrets that were uncovered earlier in the story. If you enjoy stories that are a bit of a puzzle-box and in which everyone is hiding secrets of one kind or another, then you might enjoy Lovely Little Liar, a short story about a con artist who gets caught up in the web of lies that she has spun to con her mark. (The story is free to read online at a number of sites, including mine.)
2026-07-21
Emma
Emma
*I do not want to give away too many spoilers in this section. For this reason, I will mainly summarize the last scenes of the book and try to keep all the major plot points to a minimum*. One of Us Is Lying ends with a shocking twist: instead of one of the characters killing Simon, it was he who planned his own death in order to frame the four main characters of the novel. Bronwyn, Nate, Cooper, and Addy all had reasons to want to kill Simon. But in the end, it was not any of them who took his life. Instead, Simon had ingested peanut oil, knowing that he was severely allergic to it. He then proceeded to die in the classroom where the four suspects had first discovered his lifeless body. The remainder of the book follows the lives of the four main characters after they have been cleared by the police of Simon’s murder. In the end, each of the four characters is changed by their experience in the classroom. Bronwyn and Nate start to develop feelings for each other. Cooper comes out of the closet. And Addy finds independence from her abusive boyfriend. The ending leaves the reader with many things to think about, notably the power of secrets and how far a person would go in order to reveal them.
2025-06-22
Wyatt
Wyatt
Warning: major spoilers ahead for the book ‘One of Us Is Lying’. The real killer in the book is Simon. He had written his own murder mystery and framed Bronwyn, Nate, Cooper and Addy for his death. It wasn’t until Addy had found Simon’s journal that they discovered the truth: he had planned the whole thing in order to expose the four for their secrets and had used his own death to cover his tracks due to his severe peanut allergy.

The novel concludes with a positive note on the characters, who go through a lot of growth in the novel. Bronwyn learns to accept her flaws, Nate drops the act of the ‘bad boy’, Cooper finally reveals himself, and Addy is able to break up with her controlling ex-boyfriend. It’s shown that months later they are still very traumatized by what they went through but they are stronger because of it. Other books that have a similar vibe are ‘The Cheerleaders’ by Kara Thomas and ‘The Naturals’ by Jennifer Brown.
2025-06-25
Owen
Owen
The ending of ‘One of Us Is Lying’ by Karen M. McManus is absolute perfection for those who love twisty storylines. We finally find out how Simon died, and it wasn’t murder after all. In a surprise twist, it was a carefully planned and executed suicide, that was meant to look like the others of the group were responsible for his death. I won’t go into too much detail, but his plan almost worked!

The once-dear Addy goes from blind follower to hot-on-the-case investigator after uncovering the late Simon’s long-hidden journal entries, the keys to unraveling the whole mess. Meanwhile, Bronwyn and Nate go from trying-to-accuse-each-other to mending their relationship as a duo that’s been through trauma together. Oh, and poor Cooper finds out his secret baseball life will have to be put on the backburner, but he also finds a newfound sense of strength in being his authentic self.

The plot wraps up, but not in an neat little bow. It explores how the four characters manage to recover from being under suspicion. It raises many questions about justice and morality. This book was amazing, and I highly recommend “Two Can Keep a Secret” by Karen M. McManus if you’re looking for another great thriller with a small town full of secrets.
2025-06-25
viviana matta
viviana matta
After reading the end of One of Us Is Lying by Jay Middleton I have a new understanding of the title. At first I thought the title referred to the four suspects in the murder of a student at a high school lying about their involvement in the murder. However in the end it is revealed that Jake, a character that the reader trusted, along with the rest of the social circle of Addy, was lying to everyone, including Addy, the entire time. This gives the title a darker, more ironic twist as the ‘us’ now includes everyone in the social circle of Addy, including perhaps the reader. The title is a clever piece of misdirection that wasn’t revealed until the final chapters of the book and really adds to the title of the book.
2026-07-30

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