A series of rapes causes a stir in a German university town. A special commission led by senior public prosecutor Schildt and detective Gawilek investigates. After months of surveillance, everything points to a chaplain as the masked perpetrator, known as "Zorro". But the investigators were wrong, because "Zorro" strikes again when the chaplain is in custody. This time, charges were also filed. But not against "unknown", but against the son of the senior public prosecutor...

The Investigation (1965) is TV version of a play by German playwright Peter Weiss that depicts the Frankfurt Auschwitz Trials of 1963–1965.

Private eye Dold, a specialist in surveillance tasks, is sent to investigate a Frankfurt bordello boss. He's a pain in the butt for many in the red-light district and is to be overthrown to pave the way for financially strong speculators to lucratively redevelop the area. Dold, who always saw his work as morally justified, comes to doubt the rightness of his actions far too late.

After the end of his soccer career, Heimo Körner loses touch with normal life. Only when his stepdaughter Daniela slips into the drug scene he finds a new task: he wants to keep his neighborhood clean with a vigilante group.