A writer who wants to see and display the life of an ordinary bourgeois settles in the house. Having learned about the true goals of the guest, the family members decide to play a prank on him, making him believe that a gang of crooks and gangsters is hiding in the depths of the "quiet family".

The events take place during the Great Patriotic War in Belarus. The commander of the special forces detachment "Thunder" Fedor was sent to the German rear to carry out special missions...

Follows the service of Lieutenant Colonel Lubentsov as commandant of the German city of Lauterburg in the first days after the end of the Great Patriotic War.