Physics professor Sophie and divorce lawyer Stefan have been living together as a couple for 15 years. Sophie would like to get married, but because of Stefan's experience with his clients, he doesn't believe in long, happy marriages. The two make a bet: If Sophie shows him a truly happy couple that has been married for more than five years, he will marry her.
Heidi Brühl
as Sophie
Claus Biederstaedt
as Stefan
Elisabeth Volkmann
as Flora
Willy Harlander
as Erich
Margit Geissler
as Felizitas
Ekkehardt Belle
as Zinkl
Martha Mödl
as Mrs. Simmerl
Ludwig Wühr
as Mr. Simmerl
