Inquisition (Spanish: Inquisición) is a 1976 Spanish-Italian historical horror film written and directed by (and starring) Paul Naschy.
[4] The special effects were handled by Fernando Florido, who outdid himself with his elaborate design for the demon Belphegor, seen during the film's bizarre dream sequence.
Most of the women deny they are witches, but Fossey and his men torture them sadistically until they confess, at which point they are executed.
Catherine makes a pact with Satan, agreeing to sell her soul to him if he will help her to avenge the death of her fiancé.
She drifts into some bizarre dream sequences wherein she meets Satan (played by Paul Naschy in a leotard) and the red-eyed demon Belphegor, who eventually tell her that it was Fossey who paid for the killing of Jean Duprat.