Der Fall plot
Alfons Grendelmann (Walo Lüönd) is an ex-cop who claims he discovered cases of child abuse within the higher ranks of the police force and that this led to his dismissal. As a result, Alfons is more or less forced to work as a private detective in the northern part of Zurich, the Oerlikon, an industrial area that is in full development. He ends up in a blackmail case when a businessman is blackmailed with a false pregnancy after spending a night with 18-year-old Marsha (Katrin Buschor). The girl also tries to blackmail the private detective.