Kalina is a miracle worker from Polozovich, the estate of the Serpent King. He saves from the unclean, spells for good luck, supplies live water from an unknown benefactor to the locals. But everything changes when the best friend disappears and Koschey the Immortal himself calls to his halls, promising love and affection. Is it worth believing? And what lies behind the tenderness of Koscheev? Will he help find a friend or lead to death? But Kalina is not timid, and does not leave her in trouble!