Nattevagten - Dæmoner går i arv

22-year-old medical student Emma (Fanny Leander Bornedal) has just taken a job as the night watch in the same forensic department where her parents were once almost killed by the famed psychopathic police inspector Wörmer. The events led to her mother's suicide, and her father Martin (Nikolaj Coster-Waldau) has turned to tranquilizers to suppress the memories. Determined to investigate what exactly happened to them, Emma tracks down and confronts Wörmer, only to unintentionally reawaken his blood thirst and ignite a violent revenge on everyone who sealed his destiny years ago.