Janek and Halina came to the big city from the countryside in search of work. He works on a construction site. After getting paid, instead of meeting his fiancée, he goes out for vodka with his friends, who then drag him to street girls. The consequences of this misstep have affected Janek's health, and he is ashamed of his illness and seeks treatment from a quack. Halina's sister, Zocha, is expecting a baby, but her father's incurable illness causes the baby to be stillborn. Janek, distraught by Karol's tragedy, throws himself in front of a car. Fortunately, he does not die. Finally, he goes to a venereal disease specialist and undergoes treatment.

A spy film about Professor Skalski's invention - rays that could stop engines, thus avoiding wars - which becomes the focus of foreign intelligence. In order to take over the discovery, a secret agent is sent to reach the invention via the professor's son.

Two apartment house dwellers, although unrelated, share the same name. One is an older man with an appreciation for and love of classical music, while the other is a younger man addicted to swing music. The niece of the older man arrives for a visit and gets into the wrong apartment. Complications arise.

An actor visits his father in a nursing home to study his mannerisms in preparations for the role of Faust.

Bolek, a young locksmith’s apprentice, fights off two suspicious men to defend a friend and, fleeing the police, hides at a party where guests mistake him for the wealthy but naïve Lolek.