In Nightwatch the sequel, Emma, a medical student, takes on a nightwatch job in the forensic depment. And it is no incidence. Since the fatal night-30 years earlier, when psychopathic inspector Wörmer almost killed Emma's parents, who were saved at the very last minute by their friend Jens, her family has been haunted by this horrific memory. Her mother Kalinka, actually mitted suicide when Emma was 10 and her father Min is still the shadow of himself.
　　The young woman decides to investigate what happened in her parents’ past. Upon meeting with Wörmer, Emma wakes him from his a, and unintentionally initiates a bloody revenge on all of those who sealed Wörmer’s destiny.