Derrick - Season 17 (1990)

Tossner, a greedy real-estate developer, evicts families from their homes. In one case, a young kid jumps to death from a window. His teacher takes the case personally.

Mrs. Rosen takes groceries to Mr. Mallina and finds him murdered in his apartment. He was supposed to pick an old acquaintance from the railway station later that day. Meanwhile at the station, a young man is asked to carry a suitcase past the inspection.

Ingo and Peter are undercover cops, investigating suspicious activity in a shady bar. Peter gets hired on a gig to drive a lorry, and turns up dead a couple days later. Ingo decides to investigate the case on his own.

A homeless woman is found strangled to death, on a seat at the railway station. The investigators learn that she had lately received money from a fading film star.

A student of a dancing school is found dead in the forest on her way home. A mentally challenged man is seen with her bicycle. Meanwhile, Derrick is not in his best health and must stay aside as Harry and Willi investigate.

Mr. Lickmann, a waiter, is assaulted on his way home, not far from the restaurant. Dr. Schöne appears on the scene shortly before the police and declares Mr. Lickmann dead.

Two men abduct a bank manager from his home and use him to get to the money.

Mrs. Reichel commits adultery with one of her husband's students.

Three men and a lady, who live in a pension house, have a plan to acquire money to restore some class to the rest of their lives.