Constantine is a heartthrob, and no girl can resist his charms. Having chosen the victim, Constantine learns about it as much as possible, so all the signs of attention given to them fall directly on target. A man makes love to girls for no more than two months, and then abandons them. He needs novels exclusively for work, because he writes detective stories, and girls are his muses. And then Kostya meets a gray mouse, a librarian Asya. She is the first who is not affected by his spells. Trapped alive, the dungeon quarrels with his friend, who will win her.