A talented violin-playing country boy struggles to get acceptance for his love for music.

Two children are born in a rich family's manor house - one of them, Gogo, is a son of a countess and the second one, Maciek, a son of the servant. The servant decides to switch the babies so her son can have a better life. They both grow up and fall for the same woman, a girl named Kasia raised by the countess.

After the tragic death of her fiancé, the countess of Leipzig finds out that she is with hope. The threat of a moral scandal forces her to marry the son of her father's servant - a very promising future doctor.

The director of the Warsaw operetta has problems with putting together a team. He cares very much about acquiring the star of the stage - Jadwiga Janowska. However, she is currently in Paris with her husband, diplomat Henryk de Fontana. It turns out that Ambassador Rossi falls in love with her. Jadwiga goes to Warsaw, where in her apartment her friend Apolonia trains a young adept Wanda to play on stage.

The action takes place in a fictional country. One day the head of the Ministry of Public Morality is Susan, whose greatest misfortune is to have a twin sister. Twin sister is actress and cabaret revue, which performance and behavior discredits the minister.

Magda, the butcher's daughter, against the wishes of her father becomes an actress in the theater "Golden Mask". Kicked out of the house she meets Count Xavier Runickie and soon they get married. Unfortunately, the marriage did not bring her happiness...

Mania is the illegitimate child of a girl from the suburbs of Krakow and a lawyer. Bowing to the will of the family, he abandons the girl, leaving a large monetary "compensation". The girl dies, but before she dies she leaves a certain Mr. Majcherek a letter and a document, proving that Mania will be able to receive the money when she comes of age. The dishonest Majcherek (knowing the contents of the letter) must therefore wait 20 years to be able to apply for Mania's hand and thus come into possession of her property. Unaware of anything, Mania lives in the suburbs with Maciejowa (who took her in as a child) thinking that she is her daughter. When Majcherek begins to adore Mania it turns out that she already has two rivals - boys from the neighborhood. That's when the fourth one appears - handsome Zygmunt. Mania loses her head for Zygmunt. What she doesn't know is that he is in fact her real father's upbringing....

Helenka Roliczówna is the daughter of a wealthy cosmetics manufacturer and a boarder at the Institute for Girls' Further Education. There she meets Stefan Frankiewicz, who has decided to visit his uncle, a music teacher at the school. The young people quickly take a liking to each other.