Richard is a medieval nobleman. After his first wife dies in an accident and is buried in the family vault, he remarries and has children by his second wife. A mad longing for his first wife Leonor comes over him, and he sells his soul to the devil for a chance to get her back. But when she returns, she is a murderous vampire.
- Genre: Horror, Fantasy, Drama
- Studio: Goya Producciones Cinematográficas S.A., Arcadie Productions, Films 66
- Keyword: vampire, castle, gothic horror, madness
- Cast: Michel Piccoli, Liv Ullmann, Ornella Muti, Antonio Ferrandis, Ángel del Pozo, George Rigaud