In the forest, they find the body of a postman girl who disappeared many years ago. In her bag several letters were preserved, and they are sent to the addressees. So Dasha receives news from the past from her fiance Oleg. This letter turns her whole life. Dasha learns that her beloved, who was considered dead, is actually alive. If she received this letter on time, she would not have married the unloved Miron, and her whole life would have been different - Dasha decides to find out what really happened 20 years ago and begins her investigation.
