Biggest Differences Between Peacock's ‘All Her Fault’ Show and the Book

Peacock’s All Her Fault is a mysterious and fast-paced mystery series — but how does the TV adaptation compare to the original book? Based on a novel by Andrea Mara, All Her Fault follows a mother named Marissa (Sarah Snook) whose son, Milo, disappears from his first playdate. The search for Marissa’s child uncovers secrets about those closest to her, with everyone becoming a suspect in the kidnapping. The series, which premiered in November 2025, captured our attention — as did the revelation that not all events on screen occurred on the page. Stars Abby Elliott and Daniel Monks spoke exclusi