The Sinner Season 1 Plot
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.
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Prices last updated September 24, 2026. Pricing and availability may vary by region.
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Season 1 Episodes
8 episodes
1
71
Part I
An unassuming housewife stabs a beachgoer to death, which sparks an investigation and creates confusion in a small town.
2
75
Part II
Cora tries to block Ambrose's continuing investigation, while Mason struggles to come to terms with secrets from Cora's past.
3
76
Part III
Ambrose unearths a startling secret about Cora that changes the course of the investigation; Mason takes matters into his own hands.
4
78
Part IV
With Ambrose's help, Cora struggles to recover missing memories, which lead Ambrose to a new suspect.
5
78
Part V
After a body is discovered in the woods, the investigation into Cora's past deepens.
6
72
Part VI
When Ambrose begins to waver, Cora convinces him to take a risk for the case.
7
76
Part VII
Cora finally remembers the night in question.
8
80
Part VIII
Cora's fate is determined.