A group of people visit a weird old man who is a student of the black arts. The man lives in an ancient, cursed castle. Soon people in the group start being killed off.
| Directing | Julien Duvivier | Director |
| Writing | Julien Duvivier | Author |
| Writing | Charles Spaak | Author |
| Writing | John Dickson Carr | Author |
| Sound | Georges Auric | Original Music Composer |
| Production | Julien Duvivier | Producer |
| Production | Yvon Guézel | Producer |
| Production | Michel Romanoff | Producer |
| Camera | Roger Fellous | Director of Photography |
| Editing | Paul Cayatte | Editor |
| Art | Willy Schatz | Art Direction |
| Art | Peter Martin | Set Decoration |
| Costume & Make-Up | Candide | Costume Design |
| Costume & Make-Up | Louis Féraud | Costume Design |
| Costume & Make-Up | Yvonne Fortuna | Makeup Artist |
| Costume & Make-Up | Werner Schröder | Makeup Artist |
| Sound | Guy Chichignoud | Sound Engineer |
| Costume & Make-Up | Suzanne Pinoteau | Costumer |
