A small retirement home on the edge of Vienna where the city's oldest residents live. Patients over the age of 100 begin to die under mysterious circumstances. The police's secret investigation concentrates on the nursing staff at first. But the new medical director, Dr. Klein, discovers that one of the patients is the culprit.

A 36-year-old high-school music teacher in Vienna yearns to become a rock musician. His life consists of defiant students, cynical colleagues, and a broken marriage. Does he have a chance at his dream?

After his handler is killed, police dog Rex teams up with recently-divorced inspector Richard Moser to investigate crimes and solve mysteries on the streets of Vienna. And they sometimes get help from their two-legged friend, Inspector Stockinger.

Kottan ermittelt is an Austrian television series that was aired by Austrian television ORF between 1976 and 1984. The satirical 19-episode series about a policeman from Vienna now sports cult status. Police major Adolf Kottan was played by three actors who each gave the character a distinct 'flavor'.