I Drink Your Blood (1970) Boy feeds rabies infected meat to the hippie Satanists who raped his sister. Cannibalism ensues. Rabid hippie satanist rapists; all the early 70's fears rolled into one. TIL: Actually, you can drink blood at every mass. To different effect obviously.
Your daily dose of culture courtesy of Supersonic Man (1979) - "Our heroes are men who do things which we recognize, with regret, and sometimes with a secret shame, that we cannot do." - Mark Twain
And finally, though there’s nothing really religious in the story, here’s something cool anyway. The legendary super-8 film, Shortcut, a stop motion homage to King Kong made by a bunch of kids back in 1980, has been unearthed and is available to watch for free. Check it out.