The Sinner is an American police procedural anthology television series developed by Derek Simonds for USA Network. It is named after Petra Hammesfahr's 1999 novel, which served as the basis for the first season. Bill Pullman stars as a police detective who investigates crimes committed by unlikely culprits and attempts to uncover their motivations. Only Pullman appears in every season, while the rest of the cast mostly changes for each season's story.

Plot

In the first season, Detective Harry Ambrose delves into the past of Cora Tannetti, a troubled woman, to determine why she stabbed a man to death.