An Unwanted Guest by Shari Lapena Summary: Psychological Thriller at an Isolated Hotel
Introduction: A Winter Nightmare Unfolds
When ten strangers arrive at Mitchell’s Inn, a secluded luxury hotel nestled in the Catskill Mountains, they’re expecting a peaceful winter retreat.
But a brutal ice storm cuts power and blocks all roads, trapping them inside as the first body appears at the bottom of the grand staircase.
Shari Lapena masterfully builds tension through an ensemble cast burdened by hidden secrets.
Each guest carries a traumatic past that slowly surfaces during the long, terrifying night.
By the time police finally arrive, multiple bodies lie cold, and one person walks free—having committed the perfect murder under cover of chaos.
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TL;DR: The Fast Version
- Ten guests get trapped at an isolated hotel during a catastrophic ice storm.
- A woman is found dead at the base of the stairs—and it’s not an accident.
- A second murder follows; now a killer walks freely among them.
- The group fractures as dark secrets emerge and paranoia takes over.
- By dawn, four guests are dead; forensic evidence leads to one arrest, but not all murders are solved.
An Unwanted Guest Summary: Full Story (SPOILERS AHEAD)
The novel opens on a Friday afternoon as ten guests check into Mitchell’s Inn, a charming three-story hotel cut off from the modern world.
There is no Wi-Fi, no cell service, and the only heat comes from wood-burning fireplaces. The weather promises a picturesque snowfall—the perfect backdrop for a peaceful escape.
By Saturday morning, the weather has turned lethal.
An ice storm has knocked out power, frozen the roads, and isolated the hotel completely.
The guests wake to terrible news: Dana Hart, a beautiful woman engaged to wealthy heir Matthew Hutchinson, lies dead at the bottom of the grand staircase.
David Paley, a criminal defense attorney from New York, examines the scene with a trained eye. The head injuries, he tells the group, are inconsistent with a simple fall.
Dana was pushed and struck against the steps—this is murder. Panic spreads.
Matthew, the grieving fiancé, becomes the natural suspect, especially after Beverly Sullivan mentions she heard Dana and Matthew arguing late the previous night.
The terror deepens that same afternoon. Candice White, a quiet writer, is found strangled in her room with her own silk scarf. The group realizes a killer is among them.
A frantic search of the entire hotel—attic to cellar—follows. They discover a bed in an “empty” room has been slept in, and a basement window is mysteriously shattered.
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Are they hunting a murderer, or is there an unknown intruder hiding in the inn?
Trapped together for safety, the guests begin revealing devastating secrets. Riley Shuter, a former war correspondent, admits she was held hostage in Afghanistan and now suffers from crippling PTSD.
She also reveals that she recognizes David Paley: he was once arrested for brutally murdering his own wife, though the charges were dropped for lack of evidence.
Ian Beeton confesses that his younger brother drowned because Ian left him alone years ago—a lie he’s been living with for nearly two decades. Gwen Delaney carries guilt for witnessing a crime in her youth and doing nothing to stop it.
Chaos erupts when Riley, overwhelmed by panic, flees into the freezing storm. Most of the group follows into the darkness to find her.
In the pitch-black night, Bradley Harwood, the owner’s son and the inn’s server, is found brutally murdered—his skull crushed by an iron boot scraper.
When the survivors return inside, the power suddenly comes back. In the warmth of the lobby, they make another grim discovery:
Henry Sullivan sits dead in his chair by the fire, life slipped away silently while they were outside.
By Sunday morning, police and forensic teams arrive. The death toll stands at four.
Evidence points to Lauren Day, the quiet girlfriend of Ian Beeton.
A diamond earring found beneath Bradley’s body matches hers.
Through her inner monologue during arrest, the truth emerges: Lauren is a sociopath.
She recognized Dana as “Dani,” a girl who had bullied her fifteen years ago in a group home.
Lauren killed Dana to silence her before Dana could reveal that Lauren had pushed a boy off a roof as a teenager.
She strangled Candice after misidentifying her as a blackmailer. She murdered Bradley because he actually wrote the blackmail note after witnessing Dana’s death.
But the final twist belongs to someone else.
Beverly Sullivan killed her own husband. She discovered Henry was having an affair and planning to leave her.
During the chaos, Beverly stole Lauren’s Ambien medication and slipped a lethal dose into Henry’s drink.
As she drives away from the inn, Beverly smiles, knowing Lauren will be blamed for all four deaths.
The perfect crime, hidden in plain sight.
About Shari Lapena: A Master of Suspense
Shari Lapena is a Canadian author specializing in psychological thrillers and domestic suspense.
Born in 1952, she studied English literature and worked in research and communications before turning to fiction writing.
Her debut novel A Stranger in the House (2016) became a bestseller, followed by The Couple Next Door (2017), which established her reputation for crafting tension-filled plots with shocking twists.
An Unwanted Guest showcases her ability to build paranoia and develop multiple suspects while keeping readers guessing until the final reveal.
Explore more of her work by visiting her complete book summaries.
Summary by Chapter (SPOILERS)
The Arrival and Hidden Tensions (Chapters 1–5)
Ten guests check into the remote Mitchell’s Inn as weather begins to shift.
The initial chapters establish the dynamics within the group: Henry and Beverly’s fractured marriage, the glamorous but strained engagement between Dana and Matthew, Riley’s nervous fragility, and the arrival of writer Candice White.
Each guest carries a false version of themselves, and none realize how quickly their secrets will surface.
Trapped in the Dark (Chapters 6–10)
The ice storm hits with full force overnight. Power fails, roads become impassable, and by morning, Dana Hart lies dead at the base of the stairs.
David Paley’s professional assessment—that this is murder, not an accident—transforms the group’s fear into active suspicion. Matthew becomes the obvious target for blame.
A Killer Confirmed (Chapters 11–17)
The discovery of Candice’s body confirms the group’s worst fears: a murderer is loose in the inn.
The search that follows reveals troubling clues—a slept-in bed, a broken basement window—leading the guests to believe an unknown intruder lurks somewhere in the building. Paranoia and mutual distrust become weapons themselves.
Secrets Unraveled (Chapters 18–25)
Huddled together in the lobby, guests begin revealing traumatic secrets, each confession deepening suspicion rather than building trust. Riley’s exposure of David’s past, Ian’s admission about his brother’s death, and Gwen’s guilt all create new suspects in the minds of the group. The killer listens silently as they all confess, knowing exactly who to suspect.
The Storm Rages On (Chapters 26–30)
Riley’s panic-driven escape into the blizzard triggers chaos. In the darkness and cold, Bradley is brutally murdered. By the time survivors return inside, Henry Sullivan is found dead by the fire.
The violence has reached a crescendo; they are no longer just trapped, they are hunted.
The Reckoning (Chapters 31–37)
Police arrival brings forensic examination and evidence. Lauren Day’s diamond earring beneath Bradley’s body points to her guilt.
Her arrest seems to close the case, but readers learn through her perspective that she killed three people, not four. The final twist reveals Beverly Sullivan as Henry’s killer, a murder perfectly hidden within the weekend’s bloodshed.
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Characters in This Book
| Character | Role in the Story |
|---|---|
| Gwen Delaney | A PR professional carrying guilt over witnessing a crime in her youth and failing to act. |
| Riley Shuter | A former war correspondent suffering from PTSD after being held hostage in Afghanistan. |
| David Paley | A top criminal defense attorney from NYC with a dark past involving his wife’s death; he becomes a leader during the crisis. |
| Lauren Day | The primary antagonist and a sociopath who murders Dana, Candice, and Bradley to protect her past. |
| Ian Beeton | Lauren’s boyfriend who has spent years lying about his role in his younger brother’s drowning. |
| Dana Hart | A beautiful woman engaged to Matthew; murdered by Lauren because of their shared history in a group home. |
| Matthew Hutchinson | A wealthy heir and Dana’s fiancé; he becomes a suspect after her death and brings a gun to the inn. |
| Henry Sullivan | A husband planning to leave his wife for a younger woman; secretly murdered by his own wife Beverly. |
| Beverly Sullivan | Henry’s wife who appears to be a victim but is revealed as a murderer using the weekend’s chaos to her advantage. |
| Candice White | A writer working on a romance novel; strangled by Lauren after being mistaken for a blackmailer. |
| James Harwood | The owner and chef of Mitchell’s Inn, devastated by his son’s murder. |
| Bradley Harwood | James’s son and the inn’s server; murdered by Lauren after attempting to blackmail her. |
What Drives the Story: Core Themes
| Theme | How the Book Presents It |
|---|---|
| Hidden Secrets and Deception | Every guest arrives with a false version of themselves. David hides a murder accusation, Ian lies about his brother’s death, Riley conceals her trauma, and multiple characters are guilty of crimes the group never suspects. |
| Guilt and Moral Failure | Characters are haunted by past inaction or criminal behavior. Gwen witnessed a crime and said nothing. Ian abandoned his drowning brother. David was accused of killing his wife. Their guilt shapes their actions during the trapped weekend. |
| Isolation as a Weapon | The ice storm creates physical isolation, but the guests isolate themselves emotionally through distrust and suspicion. Paranoia spreads faster than the cold, turning self-preservation into a tool for hiding guilt. |
| Sociopathy and Remorseless Evil | Lauren’s lack of empathy and her calculated, methodical murders reveal evil that cannot be predicted or stopped by conventional logic. She is unremarkable until her true nature emerges. |
| The Fragility of Relationships | Henry’s marriage collapses under infidelity, Matthew loses his fiancée to violence, and Beverly’s marriage ends not in divorce but in murder. The weekend reveals that bonds between people are fragile and easily shattered. |
Frequently Asked Questions
Who really killed Dana Hart in An Unwanted Guest?
Lauren Day murdered Dana because Dana was “Dani,” a girl who bullied Lauren fifteen years ago in a group home. Lauren killed her to prevent Dana from revealing that Lauren had pushed a boy off a roof as a teenager.
What is the ending of An Unwanted Guest?
Lauren Day is arrested for the murders based on forensic evidence, and she is guilty of killing Dana, Candice, and Bradley. However, Beverly Sullivan murdered her own husband, Henry, by poisoning him with stolen Ambien—a crime that goes undetected as Beverly drives away free.
Did David Paley actually kill his wife?
David was arrested for his wife’s murder, but charges were dropped for lack of evidence. The novel never confirms whether he is guilty or innocent, leaving his past deliberately ambiguous.
Why did Lauren kill Candice White?
Lauren strangled Candice because she mistakenly believed Candice was blackmailing her about Dana’s death. In reality, Candice was innocent and unaware of the murder.
How many people die in An Unwanted Guest?
Four guests die at Mitchell’s Inn: Dana Hart, Candice White, Bradley Harwood, and Henry Sullivan. Only two killers are responsible—Lauren Day (three murders) and Beverly Sullivan (one murder).
Is Riley the killer in An Unwanted Guest?
No, Riley is not the killer. She is a victim of PTSD who panics during the night and flees into the storm, but she is innocent of all crimes despite suspicion falling on her at various points.
What causes the ice storm at Mitchell’s Inn?
An Unwanted Guest treats the ice storm as a natural weather event that traps the guests and creates the conditions for murder. The storm itself is not caused by anyone but acts as the novel’s setting and catalyst for isolation.
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Similar Books Worth Reading
And Then There Were None by Agatha Christie: The definitive locked-room mystery where ten strangers are killed one by one on an isolated island. Like An Unwanted Guest, it combines paranoia with a shocking twist ending about the killer’s identity.
The Guest List by Lucy Foley: A atmospheric thriller set at a remote wedding on a storm-battered Irish island where guests are trapped with a killer. It mirrors the isolation and ensemble cast structure of Lapena’s novel.
The Hunting Party by Lucy Foley: A group of old friends are trapped by a Scottish blizzard in a remote estate when one is murdered. The setting and sense of claustrophobia closely echo An Unwanted Guest.
One by One by Ruth Ware: Members of a tech startup are trapped in a luxury ski chalet during an avalanche as they begin dying one by one. Like Lapena’s novel, it combines isolation with a killer loose among the trapped guests.
Rock Paper Scissors by Alice Feeney: A psychological thriller about a couple trying to save their marriage at a remote, snowy Scottish retreat where nothing is as it seems. It combines intimate betrayal with the tension of an isolated setting.
