- HD 1080
- Runtime: 62m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Andy Milligan
- Stars: Neil Flanagan, Jaqueline Webb, Judith Israel, Jack Spencer, Frank Echols
- keywords: prison, schizophrenia, vampire, murder, priest, held captive, witchcraft, grave robber, blood lust, hunchback, medieval
- Production_studio: Maipix Organization
- Slogan: Death his religion - blood his lust!
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus, Fandor Amazon Channel, Screambox Amazon Channel, Cultpix, Amazon Prime Video with Ads
- The Guru, the Mad Monk is featured in the top rankings of 1970
- #51 in Top Horror Movies of 1970
A deranged 15th Century prison colony chaplain exploits his power to get money for his church including murder and grave robbing committed by his vampire mistress and one-eyed hunchback assistant.