Episodes: Series - The Sinner S1 - 2017

When Cora Tannetti, her husband, and kid are at the beach, she fatally stabs a beachgoer for unexplained reasons.

Mason is dealing with facts from Cora's past, while Cora attempts to thwart Ambrose's ongoing investigation.

Mason decides to handle things himself.The investigation's course changes when Ambrose discovers shocking information about Cora.

When Cora is unable to retrieve her lost memories with Ambrose's assistance, Ambrose discovers a new suspect.

After a teenager's body is discovered in the middle of the forest, further concerns are raised.

Cora urges Detective Ambrose to ask the judge for permission to take her to the Beverwyck so he may check if she remembers anything.

Cora travels back in time and eventually recalls what happened that night.

The fate of Cora has been decided.