Industrialist Roman Tarski moves from Kraków to Warsaw. He is a co-owner of a thriving construction company "Żel-Beton", but one day the other partner runs away with the company's money. Tarski tries to make ends meet, but this task is very difficult because his wife, Stefa, does not know about the new situation and is having fun as before. Tarski sells his wife's jewelry, while the bailiff seizes the movable property of their home. Their maid's fiancé is the waiter, from whom Tarski accidentally learns that the waiter always has money. Faced with this perspective, he takes a job as a waiter for the Alhambra night dance. In addition, he simulates a break-in into his own home, during which he allegedly lost money and jewels from the box. The new job, which Roman Stefie is not talking about, consumes whole nights, which causes her anxiety and suspicions of betrayal. One day he catches Tarski playing with their maid. So she asks her admirer, Baron Lolo, to find out what her husband is doing at night. After many adventures and misunderstandings, everything ends happily and the dishonest partner is caught. Thanks to this, Tarski gets his money back.
