Hubert Hrabe, known as Smart Boy, is a Prague dandy who is always skirting the edge of the law. Like every likable rogue, he has a worthy adversary - Police Inspector Mourek, who has long been trying in vain to put him behind bars. However, this defender of justice, who is constantly trying to outsmart his "own" criminal, ends up becoming the victim of his own zeal while hunting forgers that are as good as any in Europe, as Hubert the Smart Boy, sets a trap for Mourek
The town is waking up. The bus driver Josef Král is saying goodbye to his wife Vera who is in a state of advanced pregnancy. At the rolling mill, the master craftsman Mares is preparing for retirement, which is now only two days away. Elderly Simon who grows and sells vegetables at the market has problems with his wife. Their little home has to give way to a new development but the wife Simonka refuses to move out. The chairman of the workers' council has troubles with the miner Adam, who has started drinking. He doesn't know that Adam is getting divorced and fears he may lose his young son to his wife.
An only son, Jirí Valenta (Jaromír Hanzlík), has been drafted to the army. At the barracks he acquires the nickname Seamstress because he sews rugs in his spare time. One day, his friend introduces him to Julka Vávrová (Jorga Kotrbová), a girl he is desperate to get rid of. The naive Jirí falls in love with the girl and accepts her invitation to spend Easter together in the country. There he learns that the girl is the single mother of the young boy Martínek, whose father is the married tractor driver.
There are still water spirits among us. One group lives in Prague, led by Mr. Wassermann, who is using his wife's family as a servants. All they need is their old house near the river. But the house is to be demolished. They have to stop it. And the only way is to drown Dr. Mrácek, who is responsible for the demolition. But he falls in love with Wassermann's niece Jana. He changes to fish, is mistaken for water spirit from Germany, is drowned and revived again. The other problem is the flour with ears... and so on...
When a noted professor receives a new treatment for his heart ailment, his outlook on life changes. Despite doctor's orders, he is determined to live out his final days on his own terms and fulfill his fantasies. He saves the life of a young woman who tries to kill herself after his recovery from heart surgery in this symbolic story of a man trying to determine his own fate in his last days alive.