'All Her Fault' ending explained: Does Sarah Snook’s Marissa find her child’s kidnapper?

All Her Fault: Ending Explained

The mystery thriller All Her Fault, starring Sarah Snook, follows Marissa Irvine, a mother whose search for her missing son begins when she arrives to pick him up from a play date and discovers he has vanished.

Story and Background

Based on Andrea Mara’s novel, the series features Jake Lacy, Sophia Lillis, Michael Peña, and Dakota Fanning. Snook, known for her acclaimed role as Shiv Roy in HBO’s Succession (2018–2023), takes the lead in this psychological drama about a desperate parent confronting fear and uncertainty.

Release Details

All eight episodes premiered on Peacock in the US on November 6, while the series is available to UK audiences on Sky and NOW TV.

Critical Reception

“For such an intense, spindly drama, it’s a shame that All Her Fault is a little too brisk in its reveals and reversals. Red herrings are quickly cleared up, and the efficient plotting – driven by determined good guy Detective Alcaras (Michael Peña), whose unwavering competence ensures we’re always on the right track – feels very neat.”

The review noted that the show’s precision and speed leave little room for viewers to draw their own conclusions, slightly dulling the suspense of an otherwise tense narrative.

Summary

Marissa’s emotional search and the smart, fast-paced storytelling make All Her Fault both gripping and slightly constrained in its mystery delivery.

Author’s Summary: A sharp yet rushed thriller, All Her Fault mixes tension and emotion as Sarah Snook portrays a mother’s frantic search for her missing child amid a neatly resolved investigation.

NME — 2025-11-07