Director: Helmut Krätzig
Script: Kurt Bortfeldt, Helmut Krätzig frei nach dem Roman „Künstlerpension Boulanka“ von Fritz Erpenbeck
Cast: Bolle, Bärbel (Gina) Braun, Ursula (Else Päschke) Dissel, Werner (Dr. Vollmer) Gorges, Ingolf (Leutnant Lorenz) Grosse, Herwart (Clown Ulf) Herden, Peter (Jan Gruyter) Köfer, Herbert (Colanta) Laszar, Christine (Frau Sievers) Mellies, Otto (Robert) Pelikowsky, Erika (Pensionsinhaberin Boulanka) Pietsch, Harry (Oberleutnant Becker) Schröder, Karin (Alti) Veldre, Erik (Hans Wolter) Weikow, Doris (Lore) Weinheimer, Horst (Hauptmann Brückner) Weiß, Karl-Heinz (Leutnant Brehm)
Camera: Hans Heinrich
Editor: Christel Röhl
Location Sound: Horst Mathuschek
Music: Wolfgang Pietsch
Production Design: Heinz Leuendorf, Hans Poppe
Costumes: Helga Scherff
Additional Credits: Dramaturgie: Margot Beichler
Production: DEFA-Studio für Spielfilme, Gruppe 60

A murder has been committed at Pension Boulanka, a guesthouse for artists and circus people. Captain Brueckner leads the investigation team, but the case will be difficult to solve: all the people living in the house are long-time acquaintances and current or former colleagues of the murder victim, Jan Gruyter, making everyone a potential suspect.