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Season 4 – The Sinner

Play trailer 0:59 Poster for Season 4 – The Sinner Oct 2021 Crime Drama Mystery & Thriller Play Trailer Watchlist
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88% Tomatometer 8 Reviews 77% Popcornmeter 250+ Ratings
Detective Harry Ambrose investigates a chilling new homicide each season. He employs some unusual tactics and a deep capacity for empathy to solve his cases. His boundless dedication is driven by his dark past, leading him into powerful and often dangerously intimate bonds with his suspects. "The Sinner" is a blend of a thrilling murder investigation and raw character drama, creating an electrifying ride with standout performances. The series was originally adapted from the novel of the same name by Petra Hammesfahr; however, the book's darker outlook was toned down, and the location was shifted from Germany to Upstate New York.
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The Sinner — Season 4

Critics Reviews

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Steve Greene IndieWire Oct 18, 2021
B+
As always, Pullman is more than up to the task. Go to Full Review Brian Tallerico RogerEbert.com Oct 12, 2021
The Sinner feels more like a familiar mystery series than it did at the best points in the first three years. Go to Full Review Liz Kocan Decider Oct 7, 2022
A solid mystery series that has proven itself to be an understated little prestige drama with a consistently excellent cast each season. Go to Full Review Agustín Acevedo Kanopa La Diaria Mar 30, 2022
3/5
(...) At this point it is already clear that the entire series is Ambrose, and in that sense there is still a lot of fabric to cut. Deaths, intrigues, resolutions are no longer necessary: it would be enough just to see him. Go to Full Review Dustin Rowles Pajiba Nov 2, 2021
The eight-episode seasons would probably be better as six episodes and about two fewer hours of Ambrose's introspection... Still, the series satisfies an itch. Go to Full Review Matt Roush TV Insider Oct 18, 2021
As played with brooding subtlety and an inscrutable squint by Pullman, Harry's psyche is often as disturbing as the mysteries he solves in this unsettling series. Go to Full Review Read all reviews

Audience Reviews

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Luann H @LuannH Sep 2, 2026 Often uncomfortable, sometimes ridiculous, but Bill Pullman is amazing in this alternative detective series. See more Kaye T @RT5680-5321 Jul 14, 2026 Loved season 1, Can't really remember season 2, season 3 felt better. Loved season 4. Really felt like the setting added to my enjoyment of season 4. See more Richard M @RWMOREY71 Jun 8, 2026 This show was interesting but verrrrry slow at the start. I think the 8 episodes could have been 5. See more Laurence S @Lazza Aug 31, 2025 Awesome TV. Pullman is twisted and brilliant. See more Tjerk v @RT70816005 Aug 19, 2025 It has it's good bits, the acting is great the story is good. The story however makes a reveal at the end that just isn't believable. Also the new age soul searching in the middle is annoying. See more Juli M @RT20678323 Jul 6, 2025 This review encapsulates the entire series. It's an okay watch, but dear God, "the tortured soul" persona is SO tedious! (Bill Pullman manages to convey a tortured soul fairly well, but it's hard to know if he was acting or not.) Some of the scenarios stretched far beyond credulity. Ambrose agreeing to be buried alive by a psychopath he knows is homicidal...?!? Sure, Jan... See more Read all reviews
The Sinner — Season 4

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Cast & Crew

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Bill Pullman

Detective Harry Ambrose

Jessica Hecht

Sonya

Frances Fisher

Meg Muldoon

Alice Kremelberg

Percy Muldoon

Neal Huff

Sean Muldoon

Cindy Cheung

L Stephanie Lam

Episodes

Episode 1 Aired Oct 13, 2021 Part I Ambrose visits the town of Clark Harbor for a getaway and finds himself at the center of a tragedy. Details Episode 2 Aired Oct 20, 2021 Part II A new suspect leads the investigation into an ongoing feud between the Lams and the Muldoons. Details Episode 3 Aired Oct 27, 2021 Part III Ambrose heads to the mainland to learn more about Percy's past and uncovers dark family secrets. Details Episode 4 Aired Nov 3, 2021 Part IV When the Muldoons push to close the investigation, Ambrose refuses, pushing Sonya to the brink. Details Episode 5 Aired Nov 10, 2021 Part V Ambrose discovers the source of Percy's ritualistic practices and dives deeper into her past. Details Episode 6 Aired Nov 17, 2021 Part VI A shocking new crime further rattles the town of Clark Harbor; Ambrose and Meg team together. Details Episode 7 Aired Nov 24, 2021 Part VII Unsure whom to trust, Ambrose hunts down his pursuers. Details Episode 8 Aired Dec 1, 2021 Part VIII Ambrose exposes the secret that threw Percy's life off course, setting off widespread consequences. Details

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The Sinner — Season 4

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The Sinner — Season 4

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Season Info

Executive Producer
Derek Simonds, Jessica Biel, Charlie Gogolak, Michelle Purple, Adam Bernstein, Nina Braddock
Network
USA
Rating
TV-MA
Genre
Crime, Drama, Mystery & Thriller
Original Language
English
Release Date
Oct 13, 2021
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