On September 14, 2025, a murder occurs on the outskirts of Rivervale.This draws the attention of FBI agents Jason Starshield and Lydia Crow.They are pulled into a world where supernatural beings set the agenda.Rivervale lies near the Canadian border - a city of rivers, rain, and cold.It is largely populated by Eastern Europeans.Among its residents are Malcolm Hampton, Emma and Mikael Bathory, and their mother, Regina Bathory.She is a businesswoman with iron claws.