What Have You Done? Summary: A Small-Town Murder That Rips the Veneer Off Rural Safety
The Quietest Places Hide the Loudest Secrets
This What Have You Done? summary walks through the events, characters, and revelations of the novel without commentary or critique.
The goal is straightforward: provide enough factual detail to help you decide whether the book fits your reading appetite.
Some towns wear their peacefulness like a thin coat of paint.
Fairhill, Vermont, is one of them.
Fields stretch toward the Green Mountains, neighbors leave doors unlocked, and teenagers pass time in graveyards because nothing else stirs.
That stillness shatters early one Friday morning when a farmer finds a dead girl in his field.
What Have You Done?, the latest thriller from Shari Lapena, uses this rupture to ask what happens when the safety you took for granted turns out to be a collective delusion.
TL;DR
Diana Brewer, a 17-year-old high school runner, is found dead in a cornfield.
The investigation points to her boyfriend, a gym teacher with a history of inappropriate behavior, and a construction worker with a troubling past.
But the real answer sits closer to home than anyone expects.
The novel tracks how a tight-knit town absorbs a murder—and how the killer hides in plain sight among friends.
Key takeaways:
- Diana is strangled and left naked in a field; her eyes are damaged by scavenging birds.
- Multiple suspects emerge, each with something to hide.
- The killer is someone Diana trusted completely.
- The final reveal hinges on a single physical clue discovered by Diana’s best friend.
What Have You Done? Summary: The Full Story
Warning: This section details the complete plot, including the ending.
Read the Entire What Have You Done? with a Detailed Chapter-by-Chapter Summary
The story opens on a late October morning. Farmer Roy Ressler spots turkey vultures circling one of his fields and drives out expecting a dead animal.
What he finds is Diana Brewer’s naked body.
She has been strangled with a ligature. Her eyes are gone, taken by the birds. Police Chief Mike Hall and Officer Chris Shepherd secure the scene as word spreads through Fairhill like a crack in glass.
Diana was popular, a talented runner, and deeply woven into the social fabric of the high school.
Detectives Stone and Godfrey from the Vermont State Police Major Crimes Unit take over. Their attention lands first on Cameron Farrell, Diana’s boyfriend.
Cameron tells police he dropped Diana at home around 11:00 p.m. That story collapses when a neighbor reports seeing his truck outside the Brewer house at midnight. Under pressure, Cameron admits Diana broke up with him that night. She said he was becoming possessive, pressuring her to attend the same college.
The investigation widens.
Principal Graham Kelly reveals that Diana had filed a complaint against Brad Turner, the gym teacher, for “inappropriate behavior.”
Turner had been leering at female students. When Kelly tries to manage the fallout quietly, Turner threatens to expose Kelly’s own extramarital affair.
Meanwhile, security footage from Home Depot—where Diana worked part-time—identifies Joe Prior, a construction worker who lingered around Diana’s register.
Prior has a history. Police in New York questioned him about a missing girl, though no charges stuck.
The town spirals into paranoia. Neighbors eye each other differently.
Doors that once stood open now stay locked.
Diana’s best friend, Riley Mead, refuses to wait passively. She and another friend, Evan Carr—bookish, quiet, always nearby—begin asking their own questions.
Riley is haunted by a text message sent from Diana’s phone after her death. It reads, “No you won’t,” a reply to Riley’s promise to find the killer.
The funeral arrives on a gray Thursday. Riley faints at the gravesite, overwhelmed.
That evening, she goes to Evan’s house seeking comfort. They talk. She lies on his bed, exhausted.
Her hand drifts beneath the bed and touches something cool and textured. A phone case. Red. Sparkly.
It is Diana’s missing phone.
Riley keeps her breathing steady. She excuses herself, steps outside, and dials 911.
The final chapters shift into Evan’s mind. On the night of the murder, he went to Diana’s house to retrieve a book. She told him about the breakup.
He confessed he loved her. She laughed—not cruelly, but dismissively, a reaction that cracked something inside him. He grabbed a hardcover copy of Moby Dick and struck her.
Then he strangled her with her own jump rope. He moved her body to the cornfield, staging the scene to resemble a random sexual assault.
Evan is arrested. Awaiting trial, he considers a plea deal but views prison not as punishment but as an opportunity—a place to write his book and “perfect his craft.”
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Characters in This Book
| Character | Role |
|---|---|
| Diana Brewer | A 17-year-old high school student and runner whose murder drives the entire story. |
| Evan Carr | A quiet, bookish friend of Diana who kills her after she rejects his romantic confession. |
| Riley Mead | Diana’s best friend who discovers the evidence that leads to Evan’s arrest. |
| Cameron Farrell | Diana’s boyfriend and primary suspect who lies to police about his whereabouts. |
| Brenda Brewer | Diana’s single mother, a nurse consumed by guilt for not being home the night of the murder. |
| Detective Stone | State Police investigator assigned to Diana’s case. |
| Detective Godfrey | Stone’s partner on the Major Crimes Unit. |
| Brad Turner | The high school gym teacher accused of inappropriate behavior toward female students. |
| Principal Graham Kelly | The school principal who initially conceals Diana’s complaint against Turner to protect himself. |
| Joe Prior | A construction worker and Home Depot customer with a history of being questioned in a missing-person case. |
| Paula Acosta | An English teacher whose daughter was also targeted by Brad Turner’s behavior. |
| Roy Ressler | The farmer who discovers Diana’s body in his field. |
Underlying Tensions: What Drives the Story
| Theme | How the Book Presents It |
|---|---|
| Small-town paranoia | Fairhill residents stop leaving doors unlocked and begin suspecting neighbors they have known for years. |
| The illusion of safety | The town’s belief that “nothing ever happens here” is proven false by a murder committed by an insider. |
| Obsession and control | Evan’s fixation on Diana and Cameron’s possessiveness both cross into dangerous territory. |
| Institutional betrayal | The high school principal suppresses a student’s complaint to avoid scandal, delaying justice. |
| Grief’s isolating weight | Brenda Brewer’s guilt and Riley Mead’s determination show how loss fractures people in different directions. |
| Technology as a double-edged tool | Cell phone evidence and security footage both expose lies and enable stalking. |
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Frequently Asked Questions
What happens at the end of What Have You Done?
Riley Mead finds Diana’s missing phone hidden under Evan Carr’s bed, realizes he is the killer, and calls 911. Evan is arrested and the final chapters reveal his motive—he killed Diana after she laughed at his declaration of love—and his cold plans to write a book about the crime.
Who is the killer in Shari Lapena’s What Have You Done?
The killer is Evan Carr, Diana’s quiet, bookish friend who was part of her close social circle. He murdered her with a hardcover book and a jump rope after she rejected his romantic confession.
Is What Have You Done? a standalone novel?
Yes, What Have You Done? is a standalone psychological thriller by Shari Lapena, not connected to any of her previous books or series.
Where is Fairhill, Vermont in What Have You Done??
Fairhill is a fictional small town in Vermont, characterized by farmland, cornfields, views of the Green Mountains, and a tight-knit community where residents traditionally left their doors unlocked.
What is the significance of Diana’s phone in the story?
Diana’s missing phone becomes the key piece of evidence that breaks the case. Its discovery under Evan Carr’s bed by Riley Mead directly leads to Evan’s arrest and the resolution of the murder investigation.
Does Shari Lapena’s What Have You Done? have multiple suspects?
The novel presents several suspects throughout the investigation, including Diana’s boyfriend Cameron Farrell, gym teacher Brad Turner, and construction worker Joe Prior, before revealing the actual killer in the final chapters.
What genre is What Have You Done??
What Have You Done? is a psychological thriller and small-town mystery, blending police procedural elements with the atmospheric tension of a close-knit rural community grappling with a violent crime.
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Books with a Similar Pull
The Couple Next Door by Shari Lapena — A child disappears during a dinner party, exposing the fractures in a seemingly perfect marriage and the secrets neighbors keep from one another.
Everyone Here Is Lying by Shari Lapena — A girl goes missing in a small town, and the investigation peels back the curated facades of multiple families living on the same street.
Local Woman Missing by Mary Kubica — A series of disappearances in a quiet neighborhood reveals the darkness that can fester behind closed doors, echoing Fairhill’s loss of innocence.
Someone We Know by Shari Lapena — A teenager sneaks into neighbors’ homes as a prank, but when a woman is murdered, the entire block becomes a gallery of suspects.
The Silent Patient by Alex Michaelides — A shocking act of violence and a slow excavation of the perpetrator’s psychology mirror the final-act reveal of a killer hiding in plain sight.
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