Bayaya, a young peasant, protected by the spirit of his dead mother, arrives at the castle of the King, where he entertains his three daughters. He soon realizes that the three princesses are nagged by evil spirits. The little peasant manages to rid them of them, fights a duel with a wicked lord who wanted to marry one of the three princesses. He finally wins the heart of the youngest sister while saving the soul of his mother who was in purgatory.
| Directing | Jiří Trnka | Director |
| Writing | Jiří Trnka | Screenplay |
| Writing | František Braun | Screenplay |
| Writing | Josef Novák | Screenplay |
| Writing | Karel Sobotka | Screenplay |
| Writing | Božena Němcová | Original Story |
| Crew | Vítězslav Nezval | Poem |
| Camera | Ludvík Hájek | Director of Photography |
| Camera | Emanuel Franek | Director of Photography |
| Art | Jiří Trnka | Art Direction |
| Editing | Helena Lebdušková | Editor |
| Editing | Milena Neubauerová | Assistant Editor |
| Sound | Josef Zavadil | Sound |
| Visual Effects | Břetislav Pojar | Animation |
| Visual Effects | Jan Karpaš | Animation |
| Visual Effects | Bohuslav Šrámek | Animation |
| Visual Effects | Zdeněk Hrabě | Animation |
| Visual Effects | Stanislav Látal | Animation |
| Visual Effects | František Braun | Animation |
| Production | Bohumír Buriánek | Production Manager |
| Sound | Otakar Pařík | Conductor |
| Sound | Jan Kühn | Conductor |
| Production | Vladimír Janovský | Assistant Production Manager |
| Sound | Václav Trojan | Original Music Composer |
