In the fifth episode, the focus is on child abuse. But what begins behind the facade of a family draws further circles when the body of a man from the family’s circle of acquaintances is found. The class teacher of the abused boy puts the investigators on the crucial track. But she doesn’t have a clean slate either…In nocturnal Hamburg, cult detectives Erichsen, Schrader, Brenner and Hu investigate – quirky, funny and with their finger on the pulse of the city.