Fioretta, who works at the circus, is the favorite of the entire staff. Her beauty and charm do not go unnoticed by outsiders either, and the wealthy industrialist Eugeniusz Rańcewicz begins to take an interest in her. Fascinated by her, he abandons his plans to marry another woman. One day, gypsies set fire to the circus grounds and steal Fioretta's two favorite horses. Livenzo comes to her aid.

A look at the lives of people who work on the barges and boats flowing across the Vistula River.

Professor Platfus and Teofil Rączka run the "Romeo and Julcia" Intermediation Office.