The warriors of Black Magician headed by Boar attack a border outpost. They capture prince Izayslav and wound his son Vlastimir. White Wizard saves Vlastimir and White Wizard's daughter Nastya falls in love with the young man. Recovering, Vlastimir plans to save his father. Many adventures await him, Nastya and their rescue party.

The film is dedicated to the little-known period of life of the great Russian composer P.I. Tchaikovsky. He appears before us not as a canonical gray-haired genius, recognized and crowned with world fame, but as a young, insecure man who comes to visit his sister for several summer days. Relatives and friends, “little people”, give the great artist love, care and spiritual support, helping him to find himself, to overcome “torture by the sounding world”. For them, as well as for the authors of the film, Tchaikovsky is an angel thrown to the ground, reminiscent of the ultimate mission of man ...