The film takes place during the civil war. Tolya Dergach, having lost his parents, falls under the influence of bandits looking for hidden treasure in the ruins of the estate. The boy, of course, will understand his new friends — and together with old friends will help the security officers to neutralize criminals.

Victor Ace loves to sing, but is forced to become a car mechanic. Lisa dreams of urban life, but lives in a village. Kostya Lastochkin is an excellent mechanic, but he serves in the army and comes home only on vacation.

Film-opera based on Tschaikovsky's adaptation of Gogol's story, 'Noch' pyered Rozhdestvom.'