The unscrupulous bar owner Otto Grolbek hires the masseur Janos Klewe to murder his landlady. He then wants to inherit her and get his hands on some urgently needed money. But things turn out differently than planned: Janos is killed during the attempted murder in Portugal and Vera returns to Germany terrified. Now Otto has to commit the crime himself and kills his landlady. He disguises the crime perfectly, but has not reckoned with Inspector Mungowski's subtlety ...
Reinhard Kolldehoff
as Inspector Mungowski
Friedrich G. Beckhaus
as Janos Klewe
Frank Straass
as Inspector Ludinger
Hannelore Schroth
as Vera Zinn
Werner Schumacher
as Josef Potrawa
Susanne Beck
as Jutta König
Walter Wilz
as Otto Grolbek
Georg Eilert
as Mock
Renate Schubert
as Mrs. Mock
Fritz Suppan
as Inspector Kiefer
Heinz Rippert
as Siebert
Anke Kröning
as Astrid Starek
