The entire story of ALL THE OTHER MOTHERS HATE ME by Sarah Harman — all spoilers, all twists, in chronological order.

Florence (Flo) Grimes, a washed-up former pop star and single mom living in Shepherd’s Bush, is doing her best to parent her sensitive, eco-obsessed ten-year-old son, Dylan Palmer, while trying (and failing) to restart her music career. She supports herself by making balloon arches and navigating the cutthroat, hyper-judgmental parent culture at St. Angeles, Dylan’s elite London prep school.

1. The Disappearance of Alfie Risby

On a cold November morning, Florence drops Dylan off at school and is confronted by Ms. Dobbins, who pushes for a behavioral evaluation—citing “Turtlegate,” when Dylan hit Alfie Risby with a cricket bat after Alfie Risby was tormenting a turtle. Florence insists Dylan isn’t the problem—he’s being bullied, and this was a reaction, not unprovoked aggression.

Florence also meets Jenny Choi, a sharp, wealthy American lawyer-mom who seems eager to befriend her.

Later that day, chaos erupts: the St. Angeles WhatsApp group announces an emergency. Florence rushes to the school to discover that Alfie has gone missing on a field trip to the Wetland Centre.

Florence forces her way through the police lockdown, finds Dylan hiding in a bathroom, and drags him home. Dylan eventually admits he covered for Alfie at roll call, making it look like Alfie was still on the bus.

That night, Florence finds Alfie’s backpack hidden under Dylan’s bed. Inside it is Alfie’s journal — including an entry stating:

“Dylan Palmer said he’s going to kill me.”

Terrified, Florence burns the journal.

2. Florence Begins Her Own Investigation — and Frames an Innocent Man

Detectives visit Florence and request a formal interview with Dylan, convincing her that her son is now a suspect. Panicked, Florence teams up with Jenny to conduct her own investigation before the police can pin anything on Dylan.

They begin questioning school staff and hear rumors about Robin Sexton, a former teacher fired for allegedly groping Alfie. They also learn Alfie has an estranged older half-brother, Ian Risby, the son of Alfie’s father, Rollo Risby, from a teenage relationship Rollo abandoned.

When Florence and Jenny tail Sexton, they see him loading fertilizer, duffel bags, and a saw into a van — which Florence takes as proof of guilt (in reality, he’s preparing for seasonal work at a Christmas tree farm).

When Dylan’s police interview is scheduled for the next day, Florence panics and acts alone:

• Poses as a Thames Water worker
• Breaks into Sexton’s home 
• Plants Alfie’s backpack under the bed
• Leaves staged “evidence” (a USB with photos)

The police arrest Sexton. Florence later learns, mortified, that Sexton was framed years earlier by the Risbys (getting him fired) after he gave Alfie a failing grade in his class — and the groping allegation was false.

But her guilt is overshadowed by relief that Dylan’s interview is canceled.

3. Betrayals, Secrets, and Missing Women

Florence’s personal life spirals when she discovers Jenny is sleeping with her neighbor Adam, a charming police officer. She also learns that Marta, Adam’s ex-girlfriend, mysteriously vanished — and that Marta had been previously having an affair with Rollo Risby.

When Florence calls Marta’s phone, she hears it ringing inside Adam’s flat. She realizes Adam is hiding something serious.

Meanwhile, Cleo Risby, Alfie’s mom, shows Florence a drawing mailed to her anonymously, presumably as a sign of Alfie’s life from the abductor.

Florence then confesses everything to Jenny — the framing, the backpack, the journal — and Jenny is furious, calling Florence “poison.”

4. Dylan Vanishes — and a Terrifying Note Appears

Florence wakes up one morning to find:

• Her pet Greta the turtle dead 
• Dylan missing 
• A note shoved through her mail slot:

“If you call the cops, he dies!!!
Address: 458 Land’s End Road, Porthcurno, Cornwall”

Jenny immediately drives Florence toward Cornwall. During the drive, she admits she told Adam that Florence suspected him of harming Marta.

5. Cornwall: Kidnapping, Murder, and a Violent Showdown

Florence enters the isolated Cornwall house alone. She is grabbed, tied up, and confronted by Adam, who confesses everything:

Adam’s Crimes:

• He killed Marta when she confronted him about her affair with Rollo.
• He disposed of her body through the plumbing — explaining Florence’s earlier sludge-filled pipes.
• He kidnapped Alfie for ransom.
• He framed Dylan on the field trip by switching backpacks.

Adam wants Florence to help him negotiate a £2 million ransom from the Risbys. She pretends to agree in order to free Alfie.

Florence attempts to drug Adam with horse tranquilizer, but he attacks her. She is brutally beaten.

Jenny, waiting outside, grows suspicious, breaks in — and shoots Adam with his own gun.

Florence loses consciousness.

6. Aftermath: Hero Status, Money, and a Shocking Final Twist

Florence wakes in the hospital, severely injured — broken bones, missing teeth — but alive.

What happens after:

• Adam’s death is ruled suicide.
• Alfie is safe.
• Florence is hailed as a hero mom by the media.
• The Risbys give Florence £5 million.
• She gives £4 million to Sexton, wracked with guilt for framing him.
• She uses the remaining money to buy Adam’s half of their duplex.
• Her relationship with Jenny is repaired; Jenny saved her life after all.

Everything seems to settle.

Final Twist: Dylan’s Secret

A news report reveals an eco-terrorist suspect involved in a Shell Oil bombing — and the CCTV jacket matches Mr. Foster, Dylan’s elderly environmentalist neighborhood friend.

Florence recalls the “crickets” Foster gave Dylan for Greta the turtle, and realizes they were actually nails—components of the nail bomb used in the Shell Oil bombing. She also begins to suspect that Dylan has been sneaking out at night, likely to help Mr. Foster.

She chooses, once again, to protect Dylan — closing the book on one crisis while quietly opening the door to the next.