The Sinner Episodes, Season 1

Part I
An unassuming housewife violently stabs a beachgoer to death, sparking an investigation by local police and sudden confusion in a small town.

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

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

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

Part V
The discovery of a body in the woods leads to more questions for everyone.

Part VI
As Ambrose begins to waver, Cora convinces him to take his greatest risk yet for the case.

Part VII
Cora journeys into the past, finally remembering the night in question.

Part VIII
Cora's fate is determined.