An evil ruler uses witchcraft and evil spirits to keep his subjects in line, but the his reign of terror prompts the people to revolt.
You can now watch The Devil's Possessed online on the following streaming providers in the United States.
| Writing | Paul Naschy | Screenplay |
| Directing | León Klimovsky | Director |
| Costume & Make-Up | Adolfo Ponte | Makeup Artist |
| Production | Pedro Pereira | Unit Production Manager |
| Directing | Pedro Pardo | Assistant Director |
| Costume & Make-Up | Manolita Ponte | Makeup Artist |
| Camera | Francisco Sánchez | Director of Photography |
| Costume & Make-Up | Rafael Abienzo | Costume Design |
| Production | Néstor Gaffet | Executive Producer |
| Production | José Antonio Pérez Giner | Executive Producer |
| Art | José Algueró | Production Design |
| Art | Óscar Lagomarsino | Set Decoration |
| Production | Modesto Pérez Redondo | Production Manager |
| Directing | Alfredo Sergio | Assistant Director |
| Costume & Make-Up | Esther Gutiérrez | Hairstylist |
| Sound | Carlos Viziello | Original Music Composer |
