An entire family is brutally murdered and the case leads the unit into a tragic story of incest and violence.

Jette Møller is found murdered in a fish boutique in Vordingborg. Finn Møller, her husband, is taken into custody, but nothing is gaining out of his answers. Her phone is tapped and when a suspicious phone call remind Fischer and La Cour about Strangers on a Train, Møller is put under surveillance. He escapes when he sails from Vordingborg to an island. The following day, the body of Putte Bech Lorentzen is found in a sauna. Unit One suspects Larsen and arrest him. Through evidence found in the garden of Bech Lorentzen, Unit One arrests Bertram Bech Lorentzen, the husband of Putte, for the murder of Jette.

When a black prostitute is found murdered and things indicate the Danish minister of justice, the unit is once again called together, although they are all busy with other work; soon we learn that things are not what they seem and we venture into the Danish biker scene.

Things are taking a turn for the worse when both Johnny and Fischer find themselves in grave danger; their cover has been blown and the bikers want them dead. This episode marks the end of the series.