A Missing Boy Turns Every Parent Into a Suspect

Former pop star Florence Grimes has spent the last decade trying to disappear. After a spectacular public downfall, she has traded fame for a quiet life in London raising her ten-year-old son, Dylan. Unfortunately, “quiet” isn’t exactly possible when your child attends the prestigious St. Angeles prep school, where every other parent seems richer, younger, prettier, and more successful than you are. Florence is constantly reminded that she’s an outsider—a washed-up celebrity the other mothers gossip about behind perfectly polite smiles.

Everything changes during a school trip to the London Wetland Centre.

When the children are loading back onto the bus, one student is missing: Alfie Risby, the spoiled son of billionaire businessman Rollo Risby. Florence’s first, shameful reaction is relief that the missing child isn’t Dylan. That relief evaporates as police swarm the school and every parent becomes a potential suspect.

The situation becomes infinitely worse after Florence searches Dylan’s room and discovers Alfie’s abandoned backpack hidden beneath his bed. Even more alarming is Dylan’s “Feelings Journal,” where he’s written that he wants Alfie dead. Terrified that the police will assume her son murdered his classmate, Florence makes a disastrous decision. Instead of telling the truth, she burns the journal, destroying evidence before anyone else can see it.

Rather than protecting Dylan, the decision only drags Florence deeper into a web of lies.

Florence Starts Her Own Investigation

Convinced Dylan is hiding something but equally convinced he isn’t capable of murder, Florence decides she’ll solve the disappearance herself before the police decide her son is guilty.

Her unlikely partner is Jenny Choi, another American parent whose personality couldn’t be more different. Jenny is organized, successful, and disciplined—a high-powered attorney who approaches every problem methodically, while Florence tends to leap first and think later. Despite their differences, the two become an effective investigative team.

The pair throw themselves into amateur detective work with surprising enthusiasm. They invent ridiculous disguises, pretending to be entrepreneurs selling organic children’s snacks so they can question people connected to the school without raising suspicion.

Their first lead comes from the school’s maintenance man, Mr. Papasizi, who points them toward deputy head Ms. Schulz.

During an elegant afternoon tea at the Ritz, Ms. Schulz shares an explosive secret that has been carefully hidden for years. She reveals that Alfie’s powerful father, Rollo Risby, has another son—a secret child named Ian whose existence has been kept from the public.

Suddenly, Florence has an entirely new suspect.

Old Secrets Lead to New Suspects

Florence and Jenny eventually find Ian, who has grown up outside the Risby family’s privileged world and now works as a successful DJ.

At first, Ian seems like the obvious suspect. A hidden son abandoned by his wealthy father certainly has motive for revenge.

Instead, Ian calmly dismantles their theory by providing a solid alibi for the day Alfie disappeared.

Although Ian isn’t responsible, he gives Florence another important lead. Years earlier, St. Angeles quietly buried a scandal involving teacher Robin Sexton, who had been accused of behaving inappropriately toward students.

Florence immediately latches onto the possibility that Sexton is a predator who abducted Alfie.

At the same time, Detectives Singh and Glover arrange to formally interview Dylan. Already panicked by the backpack and the destroyed journal, Florence convinces herself that if the police focus on someone else, they’ll stop looking at her son.

Her fear pushes her over a moral line.

She sneaks into Robin Sexton’s home, hides Alfie’s backpack beneath his bed, then anonymously tips off the police.

It’s an astonishingly reckless attempt to save Dylan—one that could easily destroy an innocent man’s life.

The Investigation Takes a Dark Turn

While Florence is busy creating false suspects, her own life begins unraveling.

She discovers that her seemingly dependable neighbor, Adam, has been secretly sleeping with Jenny.

Before she has time to process that betrayal, another stranger appears.

A young Polish woman named Zo arrives looking for her missing sister, Marta, who had been living with Adam before suddenly disappearing.

Unlike the police, Zo refuses to believe Marta simply left.

Florence joins forces with her, and together they slowly uncover another layer of hidden relationships. Marta wasn’t just Adam’s girlfriend—she had also been having an affair with Rollo Risby.

Now the cases seem connected.

As Florence digs deeper, Adam becomes increasingly nervous whenever Marta is mentioned. Eventually Florence hears something impossible: Marta’s mobile phone ringing from inside Adam’s locked apartment.

If her phone is still there, Marta never willingly disappeared.

For the first time, Florence realizes Adam isn’t simply the friendly neighbor he’s pretending to be.

He’s dangerous.

The Truth About Alfie

After a bitter argument drives Jenny and Florence apart, Florence receives a mysterious message directing her to an isolated cottage in Porthcurno, Cornwall.

Against all common sense, she goes alone.

Inside, she finally finds Adam—and the missing Alfie.

Adam confesses everything.

Marta’s death wasn’t planned, he insists. During a violent argument, he accidentally killed her and then concealed the crime.

Already trapped by that secret, he decided to solve another problem at the same time.

Knowing that Rollo Risby was both enormously wealthy and secretly connected to Marta, Adam kidnapped Alfie for ransom and revenge.

The school trip simply provided the perfect opportunity.

He also explains why Dylan became entangled in everything. Adam saw the boys fighting during the Wetland Centre visit and realized he could use Dylan as protection. By forcing the frightened child to swap backpacks and remain silent, Adam created evidence pointing toward someone else if the police ever got too close.

Dylan never kidnapped Alfie.

He was manipulated into helping cover it up.

A Brutal Fight for Survival

Florence refuses to leave without Alfie.

Fortunately, another eccentric St. Angeles mother, Allegra Armstrong-Johnson, had earlier given her horse tranquilizer for protection. Florence injects Adam, expecting him to collapse immediately.

Instead, the drug works far more slowly than she’d hoped.

Adam retaliates with shocking violence.

He brutally beats Florence, leaving her barely conscious as she desperately tries to protect Alfie.

At the last possible moment, Jenny arrives.

Although the two women recently ended their partnership on terrible terms, Jenny had realized Florence was walking into danger and followed her to Cornwall.

Together they fight Adam.

The struggle ends with Adam dead. Rather than exposing every complicated detail surrounding Marta, the kidnapping, and Florence’s own illegal actions, the authorities eventually conclude that Adam took his own life.

Many uncomfortable truths die with him.

A Hero’s Welcome—and One Final Fear

Florence spends a week in a coma recovering from her injuries.

When she finally wakes up, she discovers the public has transformed her into something she never expected to become again: a celebrity.

Only this time, she’s famous as the courageous “hero mum” who rescued Alfie and nearly died saving him.

The media celebrates her bravery, conveniently unaware that she burned evidence, framed an innocent teacher, and repeatedly obstructed the investigation.

Unable to forget what she did to Robin Sexton, Florence gives most of the reward money she receives to him after he’s fully exonerated.

For the first time in years, life begins settling into something resembling normal.

Then Christmas arrives.

Watching the news, Florence sees coverage of an eco-terrorist bombing targeting Shell Oil.

She immediately recognizes one of the suspects.

It’s her quiet neighbor, Mr. Foster.

The revelation suddenly explains several things that never quite made sense, including Dylan’s unexplained early-morning walks and the mysterious can of nails Foster once gave him.

Florence realizes that while she spent the entire novel terrified someone would hurt her son, she never considered someone might be influencing him instead.

Looking at Dylan sleeping peacefully, she understands that motherhood never really becomes safe. One crisis has ended, but another may already be beginning.