Shipowner Alex Larang and his family become the center of intrigue and murder. Helmer and Sigurdson embark on an investigation in which their former colleague, Trond Steen, comes under scrutiny. He has been suspended from the police force after killing a man in a scuffle, and now he is forced to flee after being spotted at the scene of two murders. If he is innocent, will he be able to clear his name by finding the real killer, if possible?

Secretary Benedicte Holst walks into Vestre Cemetery on her way home from work. And disappears without a trace. Helmer and Sigurdson soon have a murder to deal with. Benedicte is found dead, drugged with ether before drowning. And after another female secretary is reported missing, the police fear they are facing a serial killer. Can they prevent him from striking again?

The young factory girl Milja comes in disaster on board fishing with Julius, who fails her for the beautiful and unreliable Petrina. The people from the bourgeoisie despise factory girls and their bastard, they are vile and promiscuous. In his despair will Milja give away the kid for it to get a better life than she can provide it. But Onsea-Lovisa ready to change her opinion.

One morning Ruth Vang comes running out of the apartment, falls down the stairs and is left unconscious. In her apartment the body of the land lord, Otto Hagenberg is discovered. Helmer and Sigurdson search to uncover the killer.

Pakistani Ali Reza is found dead under a bridge, with a stab wound in the back. He was last observed boarding a bus the night before.

Based on the television sitcom Fleksnes Fataliteter. Marve Fleksnes (Wesenlund) lives a comfortable life with his mother (Schønemann), but misses a woman in his life. He is afraid he might become the last Fleksnes. His mother enrols him in a charm school, where he excels. At the same time, a young lady moves into the apartment across the hall.

Businessman Henrik Lehmann and his wife Tove are spending the summer at their country house near Risør. The idyll is shattered by a sinister incident. An accident, or perhaps a crime? Police officer Sigurdson, who happens to be holidaying in the same place with colleague Mette, has a mystery to solve