Princess Blanka (Aglaia Morávková) is secretly meeting her beloved, huntsman Ondrej (Jirí Papez). Only the chamber-maid Anezka (Jirina Bohdalová) is in favour of their love but Blanka’s father, the King (Jaroslav Marvan), mustn’t find out anything about it. Blanka is refusing all the bridegrooms the King has invited to the castle. The King has enough of his daughter’s moodiness and shuts her up in the tower. The suitors must search for her and she is to marry the one who finds her first.

Karel Doležal, insurance clerk and exemplary father of a family, leaves for a business trip with his secretary Vlasta. After spending the night together, they both return home. However, thanks to a small moment of inattention, they run over the boys. Karel runs away from the scene of the crime. He won't tell anyone what happened. Then when he reads in the newspaper that the boy did not survive the accident, he begins to feel guilty. He confides in his wife about the accident, not the infidelity. Their son Jirka overhears everything. His father has always been his role model, and that's why he doesn't want to accept his guilt.

The film is about a slightly crazy botany professor Ducánek, who is so busy with his scientific experiments that he has completely forgotten that he is married. Neither his housekeeper Veronika nor his friend Potužník knew about the existence of his capricious wife, the operetta diva Lucy. However, when his wife returns home after seven years in remorse, Ducánek takes a complicated action to elegantly get rid of his wife...