The Sinner

The Sinner

In a small New York town, a haunted detective hunts for answers about perplexing crimes while wrestling with his own demons.

The Sinner

Season 1

A young mother, overcome by an inexplicable fit of rage, commits a startling act of violence and to her horror has no idea why. An investigator finds himself obsessed with uncovering the woman's buried motive. Together they travel a harrowing journey into the depths of her psyche and the violent secrets hidden in her past.

The Sinner

Part I

An unassuming housewife stabs a beachgoer to death, which sparks an investigation and creates confusion in a small town.

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The Sinner

Part II

Cora tries to block Ambrose's continuing investigation, while Mason struggles to come to terms with secrets from Cora's past.

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The Sinner

Part III

Ambrose unearths a startling secret about Cora that changes the course of the investigation; Mason takes matters into his own hands.

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The Sinner

Part IV

With Ambrose's help, Cora struggles to recover missing memories, which lead Ambrose to a new suspect.

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The Sinner

Part V

After a body is discovered in the woods, the investigation into Cora's past deepens.

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The Sinner

Part VI

When Ambrose begins to waver, Cora convinces him to take a risk for the case.

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The Sinner

Part VII

Cora finally remembers the night in question.

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The Sinner

Part VIII

Cora's fate is determined.

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The Sinner

Season 2

Detective Harry Ambrose returns to his hometown in rural New York to assess an unsettling and heart wrenching crime: parents murdered by their eleven-year-old son, with no apparent motive. As Ambrose realizes there’s nothing ordinary about the boy or where he came from, the investigation pulls him into the hidden darkness of his hometown.

The Sinner

Part I

A troubled detective returns to his hometown to investigate why a young boy would kill his parents.

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The Sinner

Part II

Ambrose and Heather begin to unravel where Julian is from. Julian is thrust into a new world.

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The Sinner

Part III

Heather makes a startling realization about Marin. Vera and Julian are dealt a hard blow.

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The Sinner

Part IV

Ambrose returns to Mosswood to confront Vera about the commune's work.

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The Sinner

Part V

As Ambrose zeroes in on a new suspect, a rift develops between him and Heather.

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The Sinner

Part VI

Vera reveals Mosswood's past to Ambrose, leading to a turn in Julian's case.

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The Sinner

Part VII

Heather and Ambrose search for Julian.

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The Sinner

Part VIII

Heather and Ambrose continue their search for Julian as Marin’s past is unraveled.

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The Sinner

Season 3

When Detective Harry Ambrose begins a routine investigation of a tragic car accident on the outskirts of Dorchester, in upstate New York, he uncovers a hidden crime that pulls him into the most dangerous and disturbing case of his career.

The Sinner

Part I

Detective Ambrose investigates a tragic yet suspicious car accident on the outskirts of Dorchester.

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The Sinner

Part II

Ambrose looks into Jamie and Nick's relationship before the crash. Jamie begins to unravel.

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The Sinner

Part III

Ambrose investigates Jamie's past. Leela gives birth as Jamie's anxiety reaches a breaking point.

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The Sinner

Part IV

Ambrose pursues Jamie through New York City and tries to prevent another homicide.

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The Sinner

Part V

Ambrose urges the NYPD to investigate Jamie for a new crime. Jamie struggles to salvage his life.

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The Sinner

Part VI

Jamie pays Sonya a surprise visit. Ambrose goes to extreme lengths to get a confession.

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The Sinner

Part VII

After a major turn in the case, Ambrose's tactics are scrutinized.

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The Sinner

Part VIII

Jamie seeks vengeance, putting him on a collision course with Ambrose.

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The Sinner

Season 4

Still reeling from the trauma of a previous case a year ago, the now-retired Harry Ambrose travels to Hanover Island in northern Maine for a recuperative getaway with his partner Sonya, but when an unexpected tragedy occurs involving Percy Muldoon, the daughter of a prominent island family, Ambrose is recruited to help the investigation, only to be thrown into a mystery of mounting paranoia that will turn this sleepy tourist island, and Ambrose’s life, upside down.

The Sinner

Part I

Ambrose visits the town of Clark Harbor for a getaway and finds himself at the center of a tragedy.

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The Sinner

Part II

A new suspect leads the investigation into an ongoing feud between the Lams and the Muldoons.

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The Sinner

Part III

Ambrose heads to the mainland to learn more about Percy's past and uncovers dark family secrets.

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The Sinner

Part IV

When the Muldoons push to close the investigation, Ambrose refuses, pushing Sonya to the brink.

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The Sinner

Part V

Ambrose discovers the source of Percy's ritualistic practices and dives deeper into her past.

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The Sinner

Part VI

A shocking new crime further rattles the town of Clark Harbor; Ambrose and Meg team together.

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The Sinner

Part VII

Unsure whom to trust, Ambrose hunts down his pursuers.

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The Sinner

Part VIII

Ambrose exposes the secret that threw Percy's life off course, setting off widespread consequences.

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