Desc: Derrick - Die Pflicht ruft!: Directed by Michael Schaack, Michael Ekbladh. With Horst Tappert, Fritz Wepper, Gustav-Peter Wöhler, Anke Kortemeier. Derrick and Harry get into all kinds of possible and impossible situations. In exclusive villas, gloomy warehouse areas, in cemeteries, in Munich's dim half-world and in the glittery world of show business.