Csodakarikás (1987)

The king brings a new wife to the court, who is beautiful but greedy, and something is wrong with her. A little boy witnesses that while the king sleeps, his new wife dances with devils in the evenings. The queen, fearing lest her secret be revealed, imprisons the boy in a cage, who is soon rescued by a village lad. The king now wants to test him and frivolously offers him half of his kingdom if he drives away the devils. The lad does it, but the queen must reveal her true identity.