Stavern, Norway 1983: Christmas is approaching, snow is falling heavily, and a young ambitious policeman named William Wisting has just become the father of twins. He is edged off the investigation of a brutal robbery by more experienced officers, but soon he is on another case that is not only unsolved but has not even been recognized as murder. Forgotten in a dilapidated barn stands a bullet-riddled old car, and it looks as if the driver did not get out alive. This case will shape Wisting as a policeman and give him insight that he will carry with him for the rest of his professional career: generations form an unbroken chain.