A social comedy about a wealthy man in his prime, for whom marital infidelity is just a pleasant and regular sport. A young flower shop owner, to whom her husband seems to be generally ordinary and overworked, nevertheless manages to resist the advances of an experienced seducer.

Young men Štěpán, Ludvík and Karel became friends abroad, where they fought during World War II. Now they have returned home and are thinking about their future. Štěpán is a designer, so he starts a car repair shop. There is also work for Ludvík, while Karel gets a job at the Omega car factory. However, the young entrepreneurs are all in debt and their business is not prospering. Štěpán invents a ...