Zenon Ziembiewicz comes back to his hometown after graduating from the university in Paris. He gets entangled in a love triangle with educated young lady Elzbieta and a common country girl Justyna who gets pregnant.

The main character is a very superstitious man. On the 13th day of the month, after a very bad start to the day, he reads the newspaper and learns that he won the lottery. The unexpected happiness causing him to make a scene at work. Soon it turns out that there was an error in the newspaper and he did not win.....