The movie consists of three parts, each of them about Shurik, a nerdy student.. In "Naparnik" ("Partner"), Shurik has a fight in a bus with a bully named Fedya, because Fedya doesn't want to allow a pregnant woman to take his seat. Fedya is punished by community work at a construction site, where Shurik also works part-time. Of course, Fedya wants revenge... In "Navazhdenie" ("Strange Impression"), It's final exam time. Shurik (like other students) is very busy trying to find material to study. Suddenly, he notices the necessary material in someone else's hands. Shurik follows this person all over the city, reading over his shoulder, not even noticing who this person is and where they are going. The next day, after having met a beautiful girl, Shurik constantly has an impression that he's already seen her, visited her apartment etc... In "Operatsiya Y" ("Operation Y"), a depository director, trying to cover up embezzlement, hires crooks to simulate a robbery. The plan is to get there at night, overpower an old lady guard and break a few things to make the impression there was a big crime. The problem is that the very night the operation is planned for, the old lady-guard asks the tenant of her apartment (that of course happens to be Shurik) to guard the depository for her.