It Could Have Been Her

Name: It Could Have Been Her
Author: Lisa Jewell

by Lisa Jewell

Genre

Mystery, Thriller, Suspense, Crime

Pages

384

Contents

Overview

Lisa Jewell’s It Could Have Been Her follows Jane Trevally, the owner of a crumbling inherited house, as an apparently simple act of kindness pulls her into a mystery. When Jane finds a starving white terrier in the woods and traces him to a Hampstead address, she is forced to revisit a frightening episode from her own past and becomes increasingly convinced that a missing young woman’s disappearance is tied to the same house.

At the center of the story are Jane, her supportive former stepson Dexter, the elusive Daisy Black, and the troubled residents of Thornwood: Stuart Tucker, Jessamine Black, and the shadowed Black family history. The novel blends amateur investigation with psychological suspense, exploring trauma, coercive families, inherited secrets, and the question of whether uncovering the truth can also offer a way to rebuild a life.

Plot Summary ⚠️ Spoilers

In 2005, Claire Connolly, a young music technology graduate, enters the orbit of the Black family after rescuing their cat near their Hampstead home, Thornwood. The family appears eccentric but welcoming: father Allen is charming, mother Annie is brittle, daughter Jessamine is watchful, and son Jasper is obsessed with clowning. Claire stays for cheesecake, but the hospitality curdles into captivity. She later wakes disoriented in the house, is prevented from leaving, and is drawn deeper into the family’s hidden horrors.

In 2026, Jane Trevally is grieving, financially strained, and considering selling Rosebery Hall when she finds a starving white terrier in her woods. The dog’s microchip identifies him as Hugo Tucker, registered to a Hampstead address. Jane brings Hugo back with her former stepson Dexter and realizes the address is Thornwood, the same house where, in 2000, a predatory man once lured her after drinks. She had fled after hearing a scream upstairs and sensing she had been drugged. The dog’s owner, Stuart Tucker, denies knowing anything about a missing local tenant, Rose White, whose abandoned belongings suggest she did not leave voluntarily.

Jane becomes intrigued by Rose’s disappearance and begins to investigate. The case gives her new purpose and pushes her toward the idea of becoming a private investigator. She learns from landlady Helen Yaxley that Rose adored the dog and left abruptly, and from local sightings that the girl was scared and anxious. Jane finds a school hoodie, traces connections to Waterside Academy, and discovers that “Rose White” is really Daisy Black, a young woman linked to Thornwood. With Dexter’s help, Jane canvasses neighbors and learns Daisy grew up in the troubled household with Jessamine, Stuart, and Annie, and that police visited during lockdown.

Interwoven flashbacks reveal how Stuart entered the family. Years earlier, he watched Jessamine, an alcoholic mother with a Westie, in a Hampstead pub. He inserted himself into her life, became her lover, and eventually moved into Thornwood, where he cared for Daisy while Jessamine declined. Stuart discovered the family’s disturbing past in fragments: locked rooms, old photos, references to missing “au pairs,” and Jessamine’s violent control over him. Jessamine assaulted and imprisoned him, cut off contact with his daughter Blaise, and kept him trapped through threats and dependency. Yet Stuart stayed largely to protect Daisy.

Jane’s investigation expands into Thornwood’s past. Land records identify Allen and Annie Black as owners. Old film credits lead Jane to Natasha de Large and Oliver Bloom, who recall Jessamine as magnetic, unstable, and possibly abused. Circus clues point to Jasper Black, Jessamine’s missing brother, who had become Patch the Clown at Martello’s Circus. Jane tracks former contacts and learns Jasper was suspected in a past masked assault. Dr. Anthony Twist, Jasper’s former EMDR therapist, confirms Jasper was dangerous to young women and haunted by memories of his childhood home.

Jane also uncovers the 2020 cold-case inquiry into Claire Connolly’s disappearance. DI Yasmin Brooks reopened the case after seeing Daisy, who looked strikingly like Claire, at Thornwood. Brooks found guitar strings and a purple plectrum near the rear fence, matching items Claire bought on the day she vanished, but a police search of Thornwood found nothing. Stuart later found old photographs suggesting girls had been restrained in the house. Jessamine admitted that Allen brought sex workers home under the guise of “au pairs” and shackled them, while Annie denied everything.

Daisy finally appears alive at Thornwood after Stuart summons Jane. Daisy explains that seeing Claire’s photograph during the 2020 investigation convinced her Claire was her real mother. She became obsessed, isolated herself, and eventually found an old photo labeled “The Last One of Us,” showing Allen, Jessamine, and Jasper. Believing Jasper knew the truth, Daisy secretly rented Helen’s annex near the circus, took Hugo, and confronted Jasper. Jasper confirmed Claire was Daisy’s mother and said Annie knew what happened after a violent fight, but when Daisy pressed him, he attacked and tried to strangle her. Daisy escaped and called Stuart, who brought her home and concealed her return.

Jane then learns why Stuart and Daisy have not called the police: Annie Black’s body is hidden in the outhouse. Daisy says she pushed Annie during a confrontation about Claire, causing Annie to fall down the stairs. When Jessamine is told, a rare clarity returns. She insists the police be called and claims responsibility for Annie’s death, saying she will explain everything. In her statement, Jessamine reports Annie’s death as an accident and then names the Black house as a “house of horrors,” accusing her parents of killing multiple women, including Claire Connolly.

Police uncover a trapdoor beneath Annie’s study leading to underground rooms containing remains and evidence of imprisoned victims. Allen Black’s desiccated body is found there too. Jessamine tells police Annie killed Allen in a jealous rage over Claire and then killed Claire, giving Claire’s baby to Jessamine to raise as Daisy. The official revelations shock the public, and Stuart leaves Thornwood with Hugo, burdened by guilt for his silence. Jane returns to Rosebery Hall but remains uneasy about Jessamine’s version of events.

The epilogue reveals the deeper truth through Jasper’s EMDR memory: in the basement, Jasper found Allen dead, Claire murdered, and Jessamine holding Claire’s baby and the knife Jasper had smuggled to help Claire escape. Jessamine falsely blamed Claire, but Jasper understood that his sister had killed Claire and taken the child. Months later, Jasper’s body is found in Dorset, apparently by suicide. Jessamine remains in rehab awaiting trial for manslaughter. Daisy legally becomes Daisy Connolly, rejects Jessamine, and begins rebuilding her life near the Vale, while Jane resolves to sell Rosebery Hall, move to London, and start a detective agency with Dexter.

Characters

Jane Trevally

The central investigator, owner of Rosebery Hall, and rescuer of Hugo the terrier. Her search for Daisy Black forces her to confront her own past encounter at Thornwood and ultimately gives her a new purpose as a private investigator.
Dexter Lombardi

Jane’s beloved former stepson and main investigative partner. He helps canvass Hampstead, supports Jane emotionally, and later plans to build a detective agency with her.
Stuart Tucker

Jessamine Black’s partner and Daisy’s primary carer at Thornwood. He is damaged by years of coercion and guilt, but his protection of Daisy and eventual cooperation help expose the Black family’s crimes.
Daisy Connolly

Introduced under the names Daisy Black and Rose White, she is the missing young woman at the heart of Jane’s investigation. She discovers Claire Connolly is her biological mother, confronts Jasper for the truth, and later reclaims her identity as Daisy Connolly.
Jessamine Black

Allen and Annie Black’s daughter, Daisy’s supposed mother, and Stuart’s abusive partner. Publicly she frames herself as a victim of the family’s horrors, but Jasper’s memory reveals she killed Claire and took Claire’s baby.
Jasper Black

Jessamine’s brother, a circus performer known as Patch the Clown. Haunted by Thornwood and implicated in assaults on women, he confirms Daisy’s connection to Claire before attacking Daisy and later dying by apparent suicide.
Claire Connolly

A young music technology graduate who disappears in 2005 after entering the Black family’s home. Her fate drives the cold-case investigation, and she is revealed to be Daisy’s biological mother.
Annie Black

The controlling matriarch of Thornwood and wife of Allen Black. She conceals the household’s crimes, stonewalls investigators, and dies after a confrontation about Claire and Daisy.
Allen Black

The charming but predatory father at Thornwood who lures women and abuses the so-called au pairs. His body is eventually found in the hidden rooms beneath the house.
Hugo

The small white terrier whose appearance in Jane’s woods begins the entire investigation. His movements connect Rose/Daisy, Stuart, Thornwood, and Little Belmont.
Tony Trevally

Jane’s charismatic ex-husband, who lends her his London home and encourages her to pursue investigative work. His support helps Jane imagine a life beyond Rosebery Hall.
Helen Yaxley

The landlady who rented an annex to Daisy under the name Rose White. Her observations, preserved belongings, and hidden photograph provide key clues for Jane.
Hester

The local vet who scans Hugo’s microchip and identifies his registered owner. Her call about the missing tenant turns Jane’s dog rescue into an investigation.
Shannon

Jane’s dog-sitter and practical helper at Rosebery Hall. Her sightings of the anxious girl near Helen’s land help direct Jane’s early search.
Tobias Wilson

Tony’s former security consultant, who provides Jane with crucial information about the 2020 cold-case inquiry into Claire Connolly. His research confirms Thornwood’s significance.
DI Yasmin Brooks

The cold-case detective who reopens Claire Connolly’s disappearance during lockdown. Her discovery of Claire’s guitar items near Thornwood and her questions about Daisy’s birth records nearly expose the family’s secrets.
Dr. Anthony Twist

Jasper Black’s EMDR therapist. He confirms Jasper’s dangerousness to Jane and appears in the epilogue guiding Jasper back to the traumatic memory of Claire’s murder.
Natasha de Large

Jane’s former dog trainer and a participant in the film The Bedsitter. Her memories of Jessamine help Jane connect Thornwood’s present occupants to Jessamine’s past.
Oliver Bloom

Jessamine’s former co-star and brief lover. His account of Jessamine’s obsessive behavior, scars, and claimed infertility complicates assumptions about Daisy’s parentage.
Stella Madden

Jasper’s former landlady near Winchester. She connects Jasper to clowning school, disturbing behavior, a suspected masked assault, and the letter from Dr. Twist.
Avril Christmas

A past victim who identifies Jasper and his clown mask. Her testimony confirms his predatory performance-based method and strengthens Jane’s case against him.
Spencer

A neighbor in the Vale of Health who helps Jane and later provides Daisy with a safe home. His household becomes part of Daisy’s support network after the revelations.
George

Spencer’s son and Daisy’s former school acquaintance. He supplies Jane with a key photograph of Daisy and later helps house Daisy as she rebuilds her life.
Vivienne Rich

Annie’s mother and the former owner of Thornwood. Her death in 2000 destabilizes the household and leads to the hiring of au pairs.
Sandra

An escort known professionally as Tulip who briefly enters the Black household as a domestic helper or au pair figure. Her warmth influences young Jessamine before Annie drives her out.
Naomi de Santo

An au pair connected to Thornwood’s abusive household history. Jessamine later names Naomi among the victims tied to the Black family’s hidden crimes.
Blaise Drummond

Stuart’s daughter from outside the Thornwood household. Jessamine’s control cuts Stuart off from her, and reconnecting with Blaise becomes a symbol of Stuart’s possible escape.
Harvey Moor

Jessamine’s older married lover and the man she claimed was Daisy’s father. A DNA test proves he is not Daisy’s father, deepening the mystery around Daisy’s origins.
Jason Moor

Harvey Moor’s son, who tells Stuart about the DNA test excluding Harvey as Daisy’s father. His information pushes Stuart to confront Jessamine.
Wilf

Jane’s oldest stepchild, whose support during a family gathering helps Jane frame the investigation as part of her own healing. He reinforces her decision to move forward.
Reggie

One of Jane’s dogs, used to scent-track Daisy from her belongings to the former circus site. His tracking confirms Daisy had been near the trailers.

Themes

Lisa Jewell’s It Could Have Been Her is driven less by a single mystery than by a web of recurring fears: hidden violence, female vulnerability, and the difficulty of escaping the roles families assign us.

Houses as traps and archives of trauma. Thornwood is the book’s central symbol: a picturesque Vale of Health home that conceals locked rooms, an outhouse with restraint rings, and eventually a basement of buried crimes. Rosebery Hall mirrors it in gentler form for Jane—decaying, inherited, emotionally binding. Across the novel, homes preserve secrets rather than offer safety, and Jane’s decision to sell Rosebery marks a refusal to be trapped by the past.
Masks, performance, and false selves. Jasper’s clown persona literalizes the theme: comedy becomes menace, and performance hides shame and compulsion. But nearly everyone performs. Allen plays the charming family man while abusing women; Annie performs elegance and control while enabling horror; Jessamine performs victimhood and motherhood while concealing Daisy’s origins. Even Jane recognizes her bright social persona as a kind of mask, not unlike Jasper’s clown face, created to survive childhood chaos.
The inheritance of damage. The Black family’s violence is generational. Allen’s need for a perfect domestic world mutates into coercion; Annie’s denial hardens into complicity; Jessamine absorbs cruelty and reproduces it through manipulation, addiction, and control over Stuart and Daisy. Daisy, born from Claire’s captivity, embodies both trauma’s legacy and the possibility of breaking it by seeking the truth.
Seeing the overlooked. The novel repeatedly asks who notices vulnerable women. Claire, Naomi, the “au pairs,” sex workers, an alcoholic mother in a pub, and missing Daisy all risk being dismissed as unstable, transient, or unreliable. Jane’s investigative gift is moral as much as practical: she listens to fragments, dogs, neighbors, old photos, and discarded clothing until the ignored become visible.
Complicity, courage, and reinvention. Stuart’s long silence is treated with sympathy but not absolution; his care for Daisy does not erase what he failed to report. Jane’s arc offers the counterforce: curiosity becoming responsibility. By choosing action, community, and a new detective agency with Dexter, she turns survival into purpose.

The book’s deepest pattern is therefore one of exposure: buried rooms opened, masks removed, and damaged people deciding whether truth will destroy them or set them free.