Animated adaptation of Kir Bulychyov's sci-fi short fiction.
In Italy, a dying woman tells her granddaughter that she hid her treasure many years ago in Russia, in the city of Leningrad. Other people (who were around when she died) also learn about it. Thus several people arrive in Leningrad trying to find the treasure, each one for himself/herself. What's worse - the only information they have is that the treasure is under a lion - and it's in Leningrad, a city known by its numerous statues of lions. The story gets even more interesting when the soviet militia (police) learns about the whole thing and send an undercover agent...
An old detective does not want to retire. The only way out is to prove to his boss that he still can catch criminals. The problem is that there were no crimes recently to work on. Together with his retired friend he decides to commit a perfect crime himself and then quickly solve it. Real problems start when a real criminal steals money he has stolen.
Zorka, the daughter of wealthy parents, is in love with the poet Domyanovich, whom she has never seen. When he appears at her parents' house under a false name, Zorka for a long time cannot come to terms with the fact that the poet turns out to be the most ordinary and simple person... But love took its toll.
This literary adaptation was one of only two films made during World War II on the subject of the Civil War following the Bolshevik Revolution, as attention by filmmakers and viewers shifted away from past history and toward the current conflict.