An acute case of Mondayitis in Warsaw. Interwoven stories of a few inhabitants of Warsaw, including one very unlucky Italian on a governmental mission and a charitable Polish American.
A factory foreman discovers (to his discontent) that his housewife secretly takes driving lessons in order to get a job and send their son to kindergarten.
Two neighbours with similar names, Paweł and Gaweł, meet a violinist girl Violetta who pretends to be a child. When Paweł learns she's not a child anymore, he falls in love with her. And vice versa.
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.....