A funny story about a schoolgirl Nastya who doesn't like anything boring and always looks for adventures.

Based on the play of the same name by K. Simonov, in the production of the State Academic Maly Theatre of the USSR. The events of September 1944 are described, when military engineer Saveliev arrives in Moscow for a few days. In his apartment, he finds new tenants—the Vorontsov family. A mutual love sparks between him and Olya…