Richard Gunn and Camille de Pazzis join the cast for the third and final season of the series based on Brian McGreevy's novel. The show examines the strange happenings in Hemlock Grove, a fictional town in Pennsylvania. Roman Godfrey, heir to the town's wealthy Godfrey family, befriends the town's newcomer, Peter Rumancek. Recent brutal murders in the town have stirred up rumors, and the two work together to shed light on the case while also hiding their own dark secrets.