What could be more valuable than youth, beauty and health? Of course, the opportunity to return them! The careless girl Irka, caught in the net of an evil witch, can only be pitied: in a matter of days she will become an old woman, and the old witch will become a young beauty. The witch will forever appropriate her youth... Unless she is stopped! To do this, on the night of the Sabbath, you need to go to the shore of Empty Lake, find the offender and shed at least a drop of her blood. The task is not a pleasant one, but Irka has no choice - otherwise she will remain a fifteen-year old woman.