The castle used in the film is an actual Italian castle in the small town of Attigliano owned by the president of Full Moon Pictures, the distribution company.
Real brain matter was used for the climax of the film.
Based slightly on HP Lovecraft's short story, The Outsider.
The cast and crew gathered before filming to brainstorm on what they felt was terrifying in a film. They used these suggestions to add to the direction of filming.
The first Full Moon film to be released outside of Paramount.