Medialuna, the little princess, has been bewitched by the powerful witch Gualichu and cannot sleep at night. While everyone else in her kingdom sleeps, Medialuna travels into a world of witches, princesses, monsters and fantastic creatures from legends and myths. She shares with them great deeds and reveals tangled mysteries until dawn. In this episode, Chacabuco is working on different ways to reverse the spell on Medialuna, but only gets the craziest changes each time he tries. He gets lots of things, except helping the princess to sleep at night and wake up in the morning.