The plot is built around two charming sisters — a strict, wayward Galina, an assistant professor of mathematics, and a windy, frivolous student Shurochka. Despite the fact that the girls are so different, they are looking, of course, for one thing — love. The events take place in the summer pre-war Moscow and in the country where both sisters go: one in order to prepare for the re-examination, the other — to conduct math classes with the military from the Yuryev Camps located near the dacha village.
Funny and difficult situations, intrigues, tears, joy — all this will be experienced by young girls on the way to their happiness.
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.
A young man travels to Mars in a rocket ship, where he leads a popular uprising against the ruling group with the support of Queen Aelita, who has fallen in love with him after watching him through a telescope.
