Lovelace Petr arrives for a housewarming party in a new house with his parents, where he meets Polina and falls in love with her. The girl is not affected by the tricks of the young man, which he always used in relation to others. Peter is perplexed and uses all possible ways to achieve her location. Everything is complicated by the sudden arrival of a strange type, who claims to have come to his aunt and this house of their family. When good-natured tenants let him in to find out what is happening, he tells them that there is an old treasure in the wall of the house.

The year is 1994. Volodya Yakovlev, a graduate of the Higher school of Militia, is assigned to Rublevka. The operative always works in conjunction with the investigator, and that's how Yakovlev gets to know Gudkova — even then very strange, but not so lost to the world. Together they investigate important, but rather dubious cases — they are looking for a gang of pirates filming the second parts of cult action films, then they find out who stole the suitcase with the "MMM" tickets. Yakovlev's brother helps them in this, who knew as a teenager that he would have to work in the security service, and not in some kind of militia.

The heroes of the film are students of a pedagogical university, those who, after a year or two, have to carry knowledge to schoolchildren, "to sow the rational, good, eternal." In the meantime, student practice. True, the practice is not quite ordinary, because for the first time students leave far from the walls of their own university, for the first time they meet with students in the classroom not in the presence of their teachers, those with whom life encounters them daily at the institute, but with those who have been working for more than a year at school.