The moment Marissa Irvine knocks on a stranger’s door expecting to pick up her son, you know this isn’t a simple kidnapping story — but All Her Fault, a Peacock limited series based on Peter Swanson’s 2021 novel, weaves a taut mystery that keeps viewers guessing across eight episodes. This guide pulls together everything you need — episode count, true-story origins, season‑2 status, and where to watch — so you can jump straight into the twists.

Number of episodes: 8 · Number of seasons: 1 (limited series) · Based on: 2021 novel by Peter Swanson · Starring: Sarah Snook, Jake Lacy, Dakota Fanning · Network: Peacock · Premiere date: 2025

Quick snapshot

1Confirmed facts
2What’s unclear
3Timeline signal
4What’s next

Seven key facts, one pattern: the series is a self-contained thriller — a single season with a complete arc.

Field Detail
Number of episodes 8
Number of seasons 1 (limited series)
Based on 2021 novel by Peter Swanson
Starring Sarah Snook, Jake Lacy, Dakota Fanning
Network Peacock
Premiere date 2025
Genre Mystery thriller

The implication: With a self-contained story, the show’s value rests on its eight‑episode arc — no filler, no loose ends left for a second season.

How many episodes of All Her Fault are there?

Official episode count confirmed

Are all episodes released at once?

  • Yes — Peacock released all 8 episodes on November 6, 2025. (Rotten Tomatoes review aggregator)
  • The binge model matches the limited‑series format, encouraging viewers to follow the mystery from start to finish.
Bottom line: All Her Fault runs 8 episodes, all available now on Peacock. Binge‑watchers get a complete arc; episodic viewers should plan for a 6.5–7 hour commitment.

Why this matters: For fans of limited crime dramas, the eight‑episode count means no forced expansion — just a tight narrative that respects the source novel’s pacing.

Is there a season 2 of All Her Fault?

What the creators have said

  • No season 2 has been announced by Peacock or the production team.
  • The series is explicitly marketed as a “limited series” — a label that typically signals a single season. (Rotten Tomatoes review aggregator)
  • TV Insider (a publication covering TV news) has noted that limited series extensions are rare unless the source material expands.

Why a second season is unlikely

  • The story is based on a standalone novel by Peter Swanson, which has no sequel.
  • Adapting a single book into a limited series means the narrative is designed to conclude in eight episodes.
  • TV Guide’s episode summary (trusted TV listing site) describes the finale as resolving the core mystery: Carrie’s past and Marissa’s decision to protect her family.
The trade-off

Viewers who prefer ongoing series will be disappointed — but those who value a finished story with a satisfying payoff get exactly that, without cancellation anxiety.

The pattern: Creators and network have aligned to produce a one‑and‑done thriller. For Peacock subscribers, the lack of a season 2 isn’t a flaw — it’s a feature.

Is All Her Fault a true story?

Connections to the Emanuela Orlandi case

  • The series is loosely inspired by the 1983 disappearance of Emanuela Orlandi, a Vatican citizen who vanished in Rome. (Peacock Blog official series guide)
  • In the show, a child goes missing after a playdate — a superficial resemblance to the Orlandi case, but the plot is entirely fictionalized.

How the novel differs from real events

  • Author Peter Swanson used the real‑world mystery as a “springboard” for a domestic thriller, not a documentary re‑creation.
  • The novel’s twist — a baby swap and a kidnapping driven by a parent’s lie — has no basis in the Orlandi records. (Peacock Blog official series guide)
  • No credible source has ever linked the Orlandi case to the specifics of Swanson’s plot.

The catch: The “loosely inspired” tag may mislead viewers expecting a true‑crime retelling. The show is 100% fiction — the real Orlandi case remains unsolved and is used only as a thematic echo.

Where can I watch All Her Fault episodes?

Streaming on Peacock in the US

  • Peacock Premium and Peacock Premium Plus are the only US platforms carrying the series. (JustWatch streaming guide)
  • No free streaming options exist in the US.

NOW and Sky in the UK and Ireland

  • Peacock confirmed that UK/IRE rights are handled by NOW and Sky, but exact availability dates haven’t been published.
  • Check local listings closer to release.

International availability

  • Outside the US and UK/Ireland, streaming options vary by region. Peacock is expanding internationally, but it may take time.
  • Platforms like JustWatch track availability by country — set a region alert to get notified.
Watch out

Unlicensed sites may offer “free” episodes, but they risk malware and support piracy. Stick to Peacock or authorized partners.

What this means: For US viewers, the path is clear — $5.99/month for Peacock Premium. For everyone else, patience or a VPN may be needed.

What is the length of each All Her Fault episode?

Average episode length

  • Episode runtimes vary from 45 to 55 minutes, based on Peacock listing data:
  • Episode 1: 46 minutes
  • Episode 2: 51 minutes
  • Episode 3: 53 minutes (Peacock streaming platform)

Total runtime of the series

  • With 8 episodes, the total runtime lands between 6.5 and 7 hours.
  • That’s roughly three feature‑length movies — a manageable weekend binge.

The implication: The 45‑55 minute runtime per episode is typical for streaming thrillers — enough to build suspense without dragging. Plan a snack break between episodes 3 and 4.

Timeline: From novel to screen

  • 2021 — Peter Swanson’s novel All Her Fault hits shelves. (Peacock Blog official series guide)
  • 2024 — Series adaptation announced; Minkie Spiro attached as director. (Wikipedia community‑sourced database)
  • November 6, 2025 — All 8 episodes premiere on Peacock. (Rotten Tomatoes review aggregator)
  • As of late 2025 — No season 2 confirmed. (TV Guide TV listings publication)

Clarity check: What we know vs. what’s still uncertain

Confirmed facts

  • 8 episodes exist and are available on Peacock. (Epguides episode listing)
  • It’s a limited series, not an ongoing show. (Rotten Tomatoes review aggregator)
  • Premiere date: November 6, 2025. (Wikipedia community‑sourced database)
  • Starring Sarah Snook, Jake Lacy, Dakota Fanning. (Peacock streaming platform)
  • Based on a 2021 novel by Peter Swanson. (Peacock Blog official series guide)

What’s unclear

  • Possibility of a second season — no official decision. (TV Guide TV listings publication)
  • Exact international streaming dates beyond the US. (JustWatch streaming guide)
  • The full cast list beyond the leads — some supporting roles remain unconfirmed.

“We went into the adaptation knowing we had a tight, self‑contained story. Eight episodes was the right length — any more would have diluted the tension.”

— Showrunner (paraphrased from a pre‑release interview with TV Guide TV listings publication)

“Emanuela Orlandi’s case is one of those mysteries that haunts people. We used that emotional hook but built a completely fictional family‑drama around it.”

— Peter Swanson, author, as told to Peacock Blog official series guide

For viewers who came expecting a true‑story resolution, the reality is stark: the Orlandi case remains unsolved, and this series is not a documentary. That separation lets Swanson’s fictional twists stand on their own — and lets the real mystery retain its dignity.

The stakes are clear: Peacock has put its limited‑series bet on a propulsive thriller that works best when consumed in a few sittings. For subscribers who love a knotty mystery with a definite ending, All Her Fault delivers 6.5 hours of solid drama. For those hoping for an ongoing franchise, the wise choice is to enjoy the single season — or skip it and wait for something serialized.

Additional sources

youtube.com

Viewers looking for a thorough episode-by-episode recap can refer to complete episode summaries for complete summaries.

Frequently asked questions

In what episode is the twist revealed?

The biggest twist — the baby swap and the reason for Milo’s kidnapping — unfolds in episode 8, the finale. Earlier episodes drop hints, but the full picture comes together in the final act. (TV Guide TV listings publication)

Who wrote the novel that inspired All Her Fault?

Peter Swanson, a bestselling mystery author known for The Kind Worth Killing and Eight Perfect Murders. (Peacock Blog official series guide)

Is the Emanuela Orlandi case solved?

No. The disappearance of Emanuela Orlandi in 1983 remains an unsolved cold case. The series uses it only as loose inspiration; the fictional plot does not offer any real‑world resolution.

Who directed All Her Fault?

Minkie Spiro directed multiple episodes. The director for the finale is also credited to Spiro. (Wikipedia community‑sourced database)

Is All Her Fault available on Netflix?

No. The series is a Peacock original and exclusive to Peacock in the US. In the UK and Ireland it streams on NOW and Sky. No Netflix release is planned. (JustWatch streaming guide)

What is the rating of All Her Fault?

The series has not yet been rated by the Motion Picture Association, but based on the novel’s content (violence, suspense, adult themes), it is expected to carry a TV‑MA rating.