Derrick - Season 18 (1991)

Arthur Hauser calls the police to report a brutal murder. Soon after that he is found in his hotel room, stabbed to death.

The police suspects that a junkie couple has witnessed the murder of a cop.

Walter Bolitz, a heavy drinker, meets an old acquaintance who has received a heap of money. He has been hired to commit murder and he wants to share some of his pay.

Mr. Kaminski can really throw a party. One night, when he sends a lady up to his hotel suite, planning to follow her soon, there is a corpse lying in the bathroom.

Two men aggressively negotiate with Mr. Dustler about the sale of his restaurant.

A young prostitute is stabbed to death in the backyard between the brothel and her favorite bar. A crime fiction author is interested in the case.

Simon Krüger is released from prison after ten years. He had confessed the shooting of a man during a robbery, but he never revealed his accomplice.

Dr. Bloch's wife commits suicide by crashing her car into a concrete pillar. Dr. Bloch thinks he knows the culprit and ranks him no higher than a murderer.

Isolde is an excellent piano student in a family of mediocre talent. But playing the piano is not the only thing she wants from her life - and apparently someone can't handle that.