The film is dedicated to the great Russian composer Pyotr Tchaikovsky (1840-1893). It tells of the last twenty years of the great master’s life, of his friendship with Baroness von Meck, an outstanding woman of her time, who for many years was Tchaikovsky’s guardian angel. The film also includes retrospections of the composer’s childhood and adolescent years, with Tchaikovsky’s life poetically recounted against the background of fragments from his operas and ballets performed by the best Russian musicians.

The movie takes place during Russia's civil war between the Reds (Bolsheviks) and the Whites (Mensheviks). Andrejka and Yarinka are a young betrothed couple in the village of Malinovka, caught between the battle lines. Gritsian is the leader of a Menshevik band who are planning to attack the village. Yarinka appeals to the local Bolshevik commander for his faction's help. The Bolsheviks quickly come up with a plan to save the village... but the plan requires Yarinka to enter into a pretend marriage with Gritsian.