Things take an interesting turn for Tanya and her mother when her father arrives with his foster son Kolya and new wife. This film is about Kolya and Tanya's bright, pure and bitter first love.

On the legal and moral education of youth.

Several major robberies take place in Leningrad and the region, but the criminal leaves no trace. The Inurkollegia announces that the administrator of the boarding house "Otdykh" Balyasin unexpectedly receives a large sum of money as an inheritance, and the police decide to set a trap for the criminal, believing that he will not pass by such money. An employee of the Criminal Investigation Department arrives at the boarding house, and it soon becomes clear that the elusive criminal is one of the vacationers at the boarding house.

Play based on Lev Kassil's story "Conduit and Shvambrania".

Young graduate student Anna Ivankevich arrives in her native village, where she has not been for about 20 years. Here, in the rural silence of her aunt’s house, she is going to write her dissertation. Suddenly, two strange strangers unexpectedly appear in the house, whom Anna initially mistakes for thieves. They claim that the owner of this house yesterday rented it to them for two weeks, and for greater persuasiveness they hand over a letter in which Anya’s mother confirms this and also asks her to live with their neighbor, grandfather Gennady. This all looks very strange... And then the fantasy begins - it soon turns out that they are guests from the future, and chose this house as an intermediate station.

A nuclear power plant accident destroyed the RBMK reactor's technological channel, with the chief engineer and reactor calculations attributed. A special commission found fault and conducted full-scale surveys in Murmansk and Kirovsk.

Two friends, Valya and Slava, come up with an interesting game for the kids in their neighborhood—called "sea crew"—and an old abandoned shed serves as their "ship." But the game is just a game, and the kids want to participate in something real. Then they receive a letter from an older friend — the virgin lands where he is heroically working are short of tractors. Here it is, a real job — they need to collect scrap metal to build a tractor! What's more, the kids decide to raise a sunken barge from the bottom of the Neva River...