Czech nobleman Petr Vok of Rozmberk (Milos Kopecký) is no longer so young, but his amatory adventures continue to arouse the envy of men and the indignation of respectable ladies. In his "female retinue" at the chateau in Bechyne he has twelve comely girls, but he still manages to seduce the miller's wife and the maid. Lord Vok is in great financial difficulties. His elder brother Vilém advises him to marry a rich woman. Petr surprises him by announcing his intention to marry the very young Katerina of Ludanice.
An elderly rich lady, Hyacinta Horáková, is leaving for a spa. She entrusts her terrier Bobík to her sister-in-law Ludmila and her daughter Marcela, who live in her villa. The dog mysteriously disappears before long and there is no choice but to publish an advertisement promising a reward. In the newspaper's administration, advertising artist Ludvík Zoubek notices Marcela. He would like to please the girl who has charmed him and starts looking for the dog...
An unemployed young man in the second half of the 1930s, he tries various ways of making a living and, under the influence of a group of communist youth, eventually goes to Spain as an inter-brigadista...
