When author Charles Regnier returns to Paris with a best-selling book that criticizes the government, he's tormented by frequent blackouts. After a mysterious cat-like creature slaughters people close to him, Charles is suspected of murder. Charles fears that he is the beast, but his paramour Marie and best friend Henry, believe he's innocent... until the creature begins to stalk Marie.
| Directing | Lesley Selander | Director |
| Writing | Sherman L. Lowe | Screenplay |
| Crew | Reggie Lanning | Cinematography |
| Sound | R. Dale Butts | Music |
| Costume & Make-Up | Adele Palmer | Costume Design |
| Production | Marek M. Libkow | Producer |
| Sound | Richard Cherwin | Music Director |
| Editing | Harry Keller | Editor |
| Art | Gano Chittenden | Art Direction |
| Art | John McCarthy Jr. | Set Decoration |
| Art | James Redd | Set Decoration |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Directing | John Grubbs | Assistant Director |
| Sound | Fred Stahl | Sound |
| Crew | Howard Lydecker | Special Effects |
| Crew | Theodore Lydecker | Special Effects |