On his way home, Mikołaj Twardowski is attacked by bandits. He calls on the devil for help, who rescues him from danger. The devil's intentions are not selfless. Twardowski signs a pact with Hell, unaware of what he is agreeing to. Eighteen years pass, and the devil appears at Mikołaj's house with the intention of taking his son away. The cautious Twardowski, just before his death, sends his son to a hermit, who advises him on how to steal the contract his father signed.

The title character of the film is a retired nurse who lives alone and is always in a hurry to help others. She knows perfectly well what pain and suffering are, she has experienced the loss of people closest to her, and as a nurse she has become accustomed to transience and death.

Sawa, set to marry her “perfect” fiancé Jurek, is suddenly beset by doubts when a handsome actor, Krzysztof, appears on the scene. With only hours until the wedding and her best friends, thrill-seeker Anka, Oriental enthusiast Weronika, and ultra-organized TV star Oliwia, gathered for her bachelorette party, the bride-to-be is nowhere to be found.

The sophisticated thief of art Robert "Cuma" Cumiński is released on probation from the local prison by the corrupt Doctor Wiaderny to organize the theft of the famous Leonardo Da Vinci painting "Lady with Ermine" for the dealer Gruby. Three years ago, Cuma was accidentally arrested by the snoopy detective Wilk after a successful heist in the house of the collector Lehman, but he has not ratted his comrade Julian.