When the pieces of a singular figure are unearthed and then joined together, a devil of the lowest category breaks into a small Mediterranean village. From that moment on, the demon will enter the life of a painter named Bernardino, in the affairs of a "modern" marriage, in the existence of a frightened gardener and, finally, in the day-to-day life of the Great Momo.
| Directing | José María Forqué | Director |
| Writing | Noel Clarasó | Writer |
| Sound | César Latorre | Music |
| Writing | José María Forqué | Writer |
| Camera | Cecilio Paniagua | Director of Photography |
| Production | Jordi Tusell | Line Producer |
| Editing | Margarita Ochoa | Editor |
| Art | Federico Iribarren | Set Decoration |
| Costume & Make-Up | José Luis López Vázquez | Costume Design |
| Costume & Make-Up | Adolfo Ponte | Assistant Makeup Artist |
| Costume & Make-Up | Carmen Sánchez | Hairstylist |
| Costume & Make-Up | José María Sánchez | Hairstylist |
| Production | Ramón Plana | Production Manager |
| Directing | Carlos Boué | Assistant Director |
| Sound | Antonio Fernández Roces | Sound Engineer |
| Camera | Godofredo Pacheco | Still Photographer |
| Camera | Mario Pacheco | Camera Operator |
| Editing | María Rosa García | Assistant Editor |
| Directing | Lucía Martín | Script Supervisor |
| Production | Augusto Boué | Production Assistant |
