Eternal Husband

Unexpectedly, Trusotsky, with whom they communicated nine years ago, comes to Velchaninov. It turns out that recently Trusotsky's wife died, leaving him with a 9-year-old daughter.

Felix, a 12-year-old boy from outer space, during the summer holidays gets admitted into a summer children's sports camp. Few people know in the camp that Felix is not there by chance, and a few days ago he was created in a school laboratory because a space intellect sent him as an agent to planet earth to study humans. He is assisted by an ordinary boy Boris and a teacher who explains Felix local traditions and customs.

A thunderstorm. A prison guard runs from prison in the rain, taking shelter from the storm in an antique shop. A gendarme's whistle, an explosion—an assassination attempt on the Tsar. Kibalchich's house is searched. He is obsessed with the idea of ​​creating a jet engine, which he even sees in the tip of the Minister of Internal Affairs' cigar. The Peter and Paul Fortress brings Kibalchich and the guard together. Memories unfold to the accompaniment of a waltz—the park, the unveiling of a monument, the mint. A walk before the execution, an empty cell. The overseer tries to fly, but a whip cuts his dream short. And Kibalchich's dream bursts out of the Peter and Paul Fortress, filling the entire screen with a rocket.

Seva, a young schoolboy, is fighting his parents and especially grandmother who want to make child prodigy out of him.