Count Karnstein sends for a doctor to help his sick daughter Laura. Her nurse believes she is possessed by the spirit of a dead ancestor, Carmilla. A young woman becomes intrigued by the mysterious deaths surrounding Laura after a carriage accident outside the castle forces her to stay. They become close friends until Laura becomes convinced the spirit of Carmilla is forcing her to kill.
Unfortunately the movie Crypt of the Vampire is not yet available on HBO Max.
| Directing | Camillo Mastrocinque | Director |
| Writing | Ernesto Gastaldi | Screenplay |
| Writing | Tonino Valerii | Screenplay |
| Sound | Carlo Savina | Music |
| Art | Demofilo Fidani | Production Design |
| Production | Mario Mariani | Producer |
| Costume & Make-Up | Mila Vitelli Valenza | Costume Design |
| Directing | Tonino Valerii | Assistant Director |
| Editing | Roberto Cinquini | Editor |
| Camera | Julio Ortas | Director of Photography |
| Art | Demofilo Fidani | Set Decoration |
