The central character is Nadezhda Solntseva, who plans to marry Vasya. But they argue and break up, and the only one left by her side is a cat named Chernysh. The girl's only hope is that the cat will become a handsome prince. Vasya tells his mother that he gave his ex-fiancée a rare family ring. Rita Karlovna insists that the ring should be returned to the family. Meanwhile, Sanya Kot dares to propose to the girl he is in love with. However, she rejects him...