The professor's widow Vivi Cassel has three daughters: pretty Irma and Paula and unattractive, but smart, sharp-tongued Elsa, who is humiliated by the condescending attitude of her sisters and mother. She decides to prove that being a woman is much easier than being a person. After visiting a beauty salon, she makes not only her sisters' suitors fall in love with her, but also the mother's fiancé.
About the exposure by Soviet intelligence officers of the neo-Nazi organization "Black Knights", which tried to revive the fascist movement in Europe.
The events take place during the Great Patriotic War in Belarus. The commander of the special forces detachment "Thunder" Fedor was sent to the German rear to carry out special missions...
