The Stockholm police are called out to investigate the killing of a man who was brutally murdered in his own home.

Aka Deadlock

Josef is suspended, pending an internal investigation of his alleged assault of a Säpo agent. Klas Fredén, who has climbed to even higher heights within the police organisation, offers to help - but nothing in life is free.

The Beck group receives a seemingly routine murder case that takes an unexpected turn when Säpo takes an interest in the investigation.

Vilhelm Beck is a police aspirant and out on his first internship in the real world. He and his supervisor Trine are routinely called to a burglary. At the crime scene, Vilhelm is the one who discovers a dead 17-year-old boy and the mission goes directly to the Beck group. Vilhelm feels deeply affected by the situation and wants to contribute to the investigation, more than his supervisor says ok to. At the same time, Martin Beck tries to ensure that he gets to be part of Vilhelm's development, something Vilhelm doesn't appreciate as much.