When a young princess, instead of being fully dedicated to her love, persists in running around like a tomboy and roaming the forests with her gang, and a young prince refuses to give up all his vices and mischief, an aquaphobic fairy takes their fate into her hands. The princess then falls in love with the prince, who declares eternal fidelity to her. When he however breaks this promise, the fairy turns him into a frog. With which the loyalty of the princess is being tested as well.
A group of jolly young people work in the Prague Tesla factory, also spending most of their leisure time together. One of them, guitar player Zdenek, begins to shun his friends' company. He has fallen in love with Vera, who does not belong to the group. The happy-go-lucky young man already has several acquaintances and has his own method to get a girl: to take his motorcycle, his guitar and a bottle of wine and take her to a rented houseboat. Vera, however, is different and gets angry at Zdenek. But she is fond of him and thus eventually spends a whole evening with him on the houseboat. At a preventative medical examination, the doctor tells Vera she is pregnant.
A character from a musical film falls into the real world in this short, predating similar films by Woody Allen (The Purple Rose of Cairo) and Wojciech Marczewski (Escape from the 'Liberty' Cinema).