all her fault schedule: All Her Fault ending explained, release schedule and how to watch: Is it based on a true story? Here’s full story breakdown, production, cast and characters

All Her Fault’s ending announced, release schedule and how to watch
Inspired by the novel by Andrea Mara. It’s All His Fault Season 1 follows a mother’s search for her missing son and surprising facts about her family’s past. The series stars Sarah Snook as Marissa Irvine, while Dakota Fanning, Jake Lacy and Michael Peña star in the leading roles.
All Her Fault ending revealed: Why did Carrie take Milo?
In the final episode, it is revealed that Carrie Finch’s real identity is Josephine Murphy. She kidnapped Milo because he was her biological son, altered at birth following a fatal car accident involving Peter and Marissa Irvine years ago.
Carrie never intended to harm Milo. During a tense confrontation, Peter shoots her to prevent her from revealing the truth. He dies and Marissa discovers that Peter replaced his dead baby with Carrie’s newborn baby after the accident.
Peter’s deception is revealed when Marissa listens to a recording of Carrie, revealing that Peter killed Carrie’s father to hide his crime. Carrie had followed them, believing that Milo belonged to her, and that was true.
What will happen to Peter in All His Crimes?
After Carrie’s death, Peter tries to convince Marissa that her actions were justified, claiming that he saved them from pain. However, Marissa exposes his lies and plans revenge.
Later, Peter dies from an allergic reaction when Marissa deliberately replaces his EpiPen with an expired pen. Detective Alcaras confirms her death and later realizes that Marissa caused it on purpose, but allows the case to drop without pressing charges.
What will happen to Marissa and Milo?
Following Peter’s death, Marissa protects Milo and moves on. Detective Alcaras learns that both Milo and Carrie share a neurological condition called synesthesia, confirming their biological link.
In the final scene, Marissa is seen living peacefully while Milo visits Jenny. Although the detective knows what really happened, he chooses to leave the case closed, recognizing Marissa’s pain and moral dilemma.
All Her Fault release schedule and how to watch in the US, UK and Ireland
It’s All His Fault premiered in the United States peacock Open Thursday, November 6, 2025with all eight episodes were released at the same time.
inside UK and IrelandThe series is available at: Sky and NOW from Friday, November 7, 2025.
To stream on Peacock, viewers need an active subscription. Basic Plan costs $7.99 per monthMeanwhile Bonus Plan costs $10.99. For ad-free viewing Premium Plus Plan like that $16.99 per month. Annual plans are also available.
It’s All His Fault actors and characters
- Sarah Snook like Marissa Irvine
- Jake Lacy like Peter Irvine
- Dakota Fanning like Jenny Kaminski
- Michael Peña like Detective Alcaras
- Sophia Lillis like Carrie Finch / Josephine Murphy
- Abby Elliott like Lia Irvine
- Daniel Monks like Brian Irvine
- Jay Ellis like Colin Dobbs
- Thomas Cocquerel like Richie Kaminski
- Duke McCloud like Milo Irvine
- Kartiah Vergara like Ana Garcia
Based on a true story, Is It All His Fault?
It’s All His Fault Inspired by author Andrea Mara’s real-life experience. Once, when she arrived at an address to pick up her child after a play date, she found the family had moved. This incident inspired him to write the novel.
The book is a little different from the series, focusing more on the mystery and guilt between mothers. The show adapts the story into a thriller that explores infidelity, grief, and moral choices.
All His Fault production details and themes
Created by Megan Gallagher, It’s All His Fault It examines parental fear and the impact of lies. executive producer Joanna Strevens clarified that the series was not intended as a TV series “Whose job?” but as “From where?”
The story explores how grief, guilt, and secrecy are intertwined within families. It also raises questions about blame and judgment towards mothers in modern society, especially in crisis situations.
All His Fault broadcast and viewing details
It’s All His Fault Season 1 is ready to be released peacock in the USA and Sky and NOW in the UK and Ireland. It consists of: eight episodes and now a limited seriesThe second season has not been approved yet.
FAQ
Q1: How many episodes are there in season 1 of All Her Fault?
There are eight chapters It’s All His Fault season 1 All episodes were released together on Peacock and Sky on 6 and 7 November 2025.
Question 2: Is It All His Fault based on real events?
The series is inspired by Andrea Mara’s personal experience, where a brief confusion during a play date inspired the novel. The TV version adds elements of fictional drama and mystery.



