A short animated film about poor student Kolya Sorokin, who is dragged by two swans to the island of errors. On the island, incorrect solutions cause a lot of problems for Kolya. These trials force the hero to approach his responsibilities in a different way.

1896. The regiment, stationed in a small town, is bored, drunk, languishing in soullessness. Lieutenant Romashov falls in love with the captain's wife Shurochka. Society is abuzz on the subject. A quarrel arises between the captain and the lieutenant.