A story about the love of two young people who were not divided by borders or the cruelty of time.

The central characters of this comedy with a criminal plot are the members of the seemingly normal Matěn family - we have dad Karel, a designer with a passion for filmmaking, mum Růženka, who wanted to be an actress, son Jirka and teenage daughter Vera, who likes photography. And you can't leave out the talkative grandfather who lives with the family. On Christmas Eve, the whole family is going to make an amateur film. However, the intricately planned event, during which they want to capture the picking up of a carp at the post office and its release into the river with a camera, is unfortunately ruined by a thief who takes advantage of the situation and steals a large sum of money. Suddenly everyone is under suspicion...

“A bored housewife, a husband who married her for show, and a stupid boy who is full of himself because he is dating a Swiss woman.” The words of Inspector Tůma sound like they’re from a European melodrama, but in fact they come from a Czechoslovak crime story. A pair of detectives, counterfeit medicine, the high-society setting of a Karlovy Vary hotel, and Oldřich Nový as the aging hotel manager Kraus.

It is 1955 and the government in Czechoslovakia has declared an amnesty for post-war emigrants. Many of them returned to their families, only young Pavel Kocián's single mother waits in vain for him. Despite her protests, Tomáš Stach, an assembler, is accommodated in her flat as a lodger. Until recently, his fiancée Jana was also waiting for Pavel's return, but she has given up hope and visits Mrs Kocián only out of pity. One evening, an unknown man who introduces himself as Jonáš and claims to know Pavel visits her.

Honza and Zuzana are very young husband and wife. They have a little daughter of whom willingly occasionally take care the grandparents and Honza's fifteen-year-old brother Martin. Zuzana continues studying and Honza devotes all weekends as an amateur competitor to the motor-cycles at the speedway. Zuzana is not interested in motor-cycles. Martin holds responsible for his brother's marriage and at the advice of his friend Magda, who is of the same age, invites her sister-in-law to the club of Hucul horses so that she does not feel bored. But by misfortunes and unexplained quarrels both young husband and wife start being jealous of one another.