Associate Professor Jakub Johanek was looking forward to his uncle's inheritance and celebrated it with his friends in advance, not knowing what treasures he could actually expect. He had a few too many drinks and woke up the next day with a perfect window. He is tormented by a hangover, and on top of that, the housekeeper comes in with a statement that he robbed her daughter of her wedding ring yesterday - so the associate professor is in for a quick wedding. Although Jakub has been eyeing the girl for a long time, he now has completely different concerns. He has been approached by a certain loafer who claims to have seen Johanek set fire to a stack of wood at night with his own eyes. If he doesn't get a hefty ransom, he will go and report him...

The owner of a clothing store, Mr. Načeradec, spends most of his free time in a café, where he plays chess with the owner of a rival store, Mr. Dundr, over mineral water. Načeradec's daughter Edith, coincidentally, starts practicing law at the same time as her boyfriend, Dundr's son. Mr. Načeradec often fills in for Mr. Findajs at the card company, who is currently dedicating himself to the wife of another player, Mr. Tachecí, the owner of a detective agency. Načeradec keeps his winnings, Findajs has to pay for the money he loses. One day, Mr. Načeradec is so unlucky in the game that he and Mr. Dundr get into a heated argument that ends up in court. Both men are represented by their children, who are rather amused by the situation.

Baron Dolanský is deeply interested in eugenics, he knows what happens when the same plants are crossed over and over again, and he rightly concludes that it will be no different with people. He is a widower and has no descendants, so his nephew Max must provide the future heir to the coat of arms. Fear of possible degeneration compels the Baron to provide the family with new blood. On the other hand, it must not be just anyone - he must at least have certain means. The most serious candidate is the poor but beautiful Madla Lísková, but she should receive preliminary training. The nobleman demands that she stay at his castle for a year. The girl's mother readily agrees, after all, her daughter has a secure future ahead of her. How will the efforts of the Czech Pygmalion turn out?

The bad economic situation causes the owner of a fish shop, Kateřina Udadná, to declare bankruptcy. The woman is devastated because she has worked hard all her life. She unexpectedly receives a letter from America from a certain Jonn Sam, who informs her that he is coming to Europe, where he intends to settle down. He brings her news about the inheritance that Mrs. Kateřina is to receive from his deceased uncle.