- Country: Italy, Spain
- Genres: Horror
- Release: 1970-10-08
- Director: José Luis Merino
- Writers: Enrico Colombo , José Luis Merino
- Language: Italian
- Stars: Erna Schurer , Carlos Quiney , Agostina Belli , Cristiana Galloni , Antonio Jiménez Escribano , Mariano Vidal Molina , Enzo Fisichella , Ezio Sancrotti , Giancarlo Fantini , Franco Moraldi
- Runtime: 98 min
- Awards: N/A
- AKA: Das Geheimnis von Schloß Monte Christo , El castillo de Frankenstein (Mexico) , Blood Castle , Murhaaja kauhujen linnassa (Finland) , El asesino del castillo sangriento (Argentina) , Pelkojen linna (Finland) , Altar of Blood , Scream of the Demon Lover (United States of America) , Castle of Blood (Belgium) , Mördaren i skräckens slott (Sweden) , Killers of the Castle of Blood (United Kingdom) , Le monstre du château (Canada) , O pyrgos tou tromou (Greece) , Killers of the Castle of Blood , Scream of the Demon Lover (Canada) , Ivanna: El castillo de la puerta de fuego (Spain) , Le monstre du château (France, French Republic) , Killers of the Castle of Blood (Australia) , Ivanna (Spain) , Il castello dalle porte di fuoco (Italy) , Il castello dalle porte di fuoco , Mördaren i skäcken hus (Sweden)
- Plot: A beautiful young woman travels to a remote estate to seek employment as a biochemist for Baron Janos Dalmar. She finds herself attracted to him, so immerses herself in her work to suppress her lusty desires. A rash of rather brutal murders occurs in the area and she soon discovers that the Baron is not what he seems. Not long thereafter, the Baron transforms into a demon, and the beautiful young woman becomes his very own love slave.
- IMDB:tt0065905
Scream of the Demon Lover Cast · · · ALL
José Luis Merino
Director
Erna Schurer
Ivanna Rakowsky
Carlos Quiney
Janos Dalmar
Agostina Belli
Cristiana
Cristiana Galloni
Olga
Antonio Jiménez Escribano
The Butler
Mariano Vidal Molina
Inspector
Ezio Sancrotti
Driver Turning Rapist
Franco Moraldi
The Mayor
Javier de Rivera
The Judge