Louise realises that Anders Kjeldsen does not kill alone but has a partner who is the dominant of the two. In the basement, Emma tries to persuade Stine to help her to escape.

Jan and Louise find a dress belonging to Natasha, the first victim, which Anders Kjeldsen had hidden. That same night, Anders tries to kidnap another woman. Stine Velin attends her big brother Mikkel's 40th birthday party and reveals a dark family secret.

The public appeal for information on Anders Kjeldsen leads to the identification of the third victim from the farm and an explanation of how all the women met their killer. Louise suspects he has a female accomplice.

Danish thriller series. Stine Velin is taken into police custody, but insists that she is also one of Anders Kjeldsen's victims and does not know where either Anders or Emma are.

Jan and Louise locate Anders Kjeldsen. Louise is concerned that Stine's family is in danger and puts them in a safe house.

Five years ago, Alice Ejbye's 18-year-old son Markus was murdered by a serial killer who was never found. Alice is now seriously ill and asks criminal profiler, Louise Bergstein, the daughter of her best friend, to help solve the case.

A young man has been found in the woods, tortured and stabbed to death. Louise Bergstein and Karina Horup try to find evidence for whether the murder can be attributed to a serial killer who, after a five-year hiatus, may now be active again.

Louise Bergstein and Karina Hørup discover that the serial killer has a claimed a new victim, William Fjeldby, who was kidnapped and abducted in his own car. William's father, multimillionaire Gorm Fjeldby, clings to the hope that his son is alive.

Alice Ejbye receives some bad news from the doctor. At the same time, despite two new victims, the police have yet to find the man who killed her son Markus. Desperate, Alice posts a video on social media offering a reward.

Seven weeks after Alice's death, Louise is in mourning and wants to go home as Karina issues her with an ultimatum regarding the case. Alice's death raises a new suspicion which takes the investigation in a new direction. Peter Vinge focuses on his work at a local sawmill, where he receives an unexpected offer from Leif. At the same time, Peter is in conflict with Johannes, who remains in a stage of teenage revolt against his father.

Louise Bergstein continues to assist the investigation to find the serial killer, who now has six brutal murders to his name. With Karina Hørup, Louise returns to the first victims in an attempt to find out where they may have met their killer. Peter notices that the police are closer to him than ever before, and at the same time happens to meet Louise again.