Quiet and measured life in an old residence of a provincial town are waiting for fun change in the lives of the main characters of the film Oli Petit and Kolya and hostel residents. It all starts with the return of the Army Nikolay; he prepares for his wedding to wait for Olga. At the same time, the city comes to businessman Konstantin Smirnov, who once lived in this hostel. Naturally, he can not visit his first love (Kolya's mama). Konstantin's son, Pyotr, a young genius, winner of the Nobel Prize, the bride falls in love with Nikolay and meets reciprocal feelings. Ole excruciatingly difficult given the choice in favor of the groom. Pyotr after marrying Olga and Nicholas arrives at the celebration with a view to wish happiness to young and went along with the bride. Olga and Pyotr live ha