Two marriageable girls, Princess Disperanda and her maid Káča, sign a betrothal with their own blood in exchange for fairy-tale grooms. Although both devilish betrothals accidentally fall into the hands of the brave retired soldier Martin Kabát, the cunning devil Solfernus takes possession of them through cunning, and Martin has no choice but to go to the burning hell.
The plot of the film follows a bus ride on the Prague - Karlovy Vary route and the actions of the people on it. A diverse group of people with various interests, professions and personalities gathered on the bus. Their encounter in the close environment of the bus gave the opportunity to create a whole series of good humorous situations. The ride on the express bus is a symbolic example of the contemporary life of our society, in which, just like when riding a bus, it is necessary to suppress many private interests and selfish qualities in order to successfully reach the destination.
The elder son of the farmer Marunáč dies of a work accident. His wife and younger brother fall in love and try to break free from their despotic father.
