"The Sinner’s" third installment follows Detective Harry Ambrose (Pullman) as he begins a routine investigation of a tragic car accident on the outskirts of Dorchester, in upstate New York. Ambrose uncovers a hidden crime that pulls him into the most dangerous and disturbing case of his career. "The Sinner" will bring back Derek Simonds as executive producer and showrunner, Jessica Biel and Michelle Purple as executive producers through their company Iron Ocean, and Charlie Gogolak as executive producer. Willie Reale will serve as executive producer. Adam Bernstein (“Fargo,” “Breaking Bad”) is set to direct the first two episodes and will also executive produce. The series hails from UCP.