A young girl decides to join a Hussar squadron and fight against Napoleon. Dressed as a man, she proves herself an excellent, even heroic soldier, but complications ensue when her real identity is revealed.

As she works in her tedious office job, Maria Ivanovna dreams about being married, and she has particular hopes that her co-worker Nikodim Mityushin will take an interest in her. Nikodim, though, is in love with Zina, who sells cigarettes on the sidewalk, and he frequently buys cigarettes from her even though he does not smoke. One day, a film crew uses Zina as an extra in an outdoor scene, and the cameraman, Latugin, falls in love with her. Latugin soon arranges an acting job for Zina. To complicate matters further, Zina has yet another admirer in Oliver MacBride, an American businessman who is visiting Moscow.