The police initiate a manhunt for the kidnapper, who is revealed to have a strong personal motive. As time is running out, Wisting must dig into a tragic event from the distant past. Andrew is forced to participate in a high-stakes game.
Wisting is under pressure, still without leads. Clifford's parents await contact from the kidnapper but receive a mysterious message that leads them to a gruesome discovery. It's clear the kidnapper wants to tell them something, but what?
Clifford's family receives a ransom demand and a cryptic message. The clues suggest Clifford has been taken as a revenge against his grandfather. Wisting's daughter, Line discovers her ex, Tommy, has fallen into very bad company.
Six-year-old Clifford Greenwood vanishes from the family hotel Wildenvey and an employee is found dead. Detective William Wisting believes the boy was kidnapped. The Greenwood family is shocked, but Wisting discovers they have secrets.
Line's shocking findings overturn the police's theory of "The Other". The perpetrator gets rid of loose threads and time is running out. Wisting discovers the secret that his daughter has kept hidden from him.
Line's obsession with the Viggo case leads to a fight with her father Wisting. With the press hot on their heels, Wisting and the FBI discovers more corpses, as pressure mounts to catch the serial killer.
Wisting and former colleague Robekk join forces, but will they figure out who was behind the evidence tampering? When Line uncovers a mysterious videotape connected to her father's case, clues point to Linnea's abduction.
Wisting and his team must deal with a setback when a crime scene reconstruction with serial killer Tom Kerr goes wrong. Wisting's daughter Line deals with the consequences of her actions.
Detective William Wisting makes a terrifying discovery: a corpse among the spruces at a Norwegian Christmas tree farm is connected to a wanted American serial killer.