Der Nachtgänger

In the middle of the night, a gruesome crime scene is discovered at a Stockholm campsite, revealing a brutal murder and a young man with a disturbingly unusual appearance. The victim is identified as the son of a famous author, who suffers from sleepwalking, raising questions about his involvement. Inspector Joona Linna takes on the case, and suspicions grow as further clues suggest this crime may be just the beginning of a series of violent murders.