Seven young men gather at a manor in August 1914 to form the nascent First Uhlan Regiment, riding off to war amid budding loves and sudden loss. Fifteen years later, the survivors reunite and confront how the conflict irrevocably altered their lives and relationships.

Janek, a poor clerk, falls in love with Zosia Grzybek, who comes from the small town of Budy. From the very beginning, her parents are hostile towards their daughter's partner. Soon, the girl's parents inherit a substantial sum of money. Thanks to this, they go to Warsaw to introduce their daughter into society and to enjoy the attractions of the big city themselves. Janek also goes to the capital, where he meets a man named Lopek, who is well versed in the social life of the capital. Lopek is supposed to help Janek win the hand of his beloved, but his services always cost 10% of the profits from the venture.

Lieutenant Niko’s family insists he marry a chosen fiancée, but he falls for a beautiful baroness and travels to meet “his betrothed” disguised as his orderly, who impersonates him, only to discover that the baroness is in fact the intended bride. Meanwhile, the baroness and her maid swap identities in turn, leading to a cascade of mistaken identities and a lighthearted resolution when true matches are revealed.

After his business partner Otto vanishes with the company’s funds, Roman Tarski tells his wife Stefie he must work secretly by night as a waiter at the club “Alhambra.” Stefie grows suspicious of his exhaustion and odd behavior, and when she finds him drunk with the maid Kazia and her fiancé Walery, she enlists Baron Carolescu’s help to expose Roman’s deception and uncover the truth about the missing money.

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.