Los ritos sexuales del diablo aka Black Candles(1982 Spain)

 Los ritos sexuales del diablo(1982 Spain)

aka

Black Candles

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A young woman travels with her partner to England on the unexpected death of her brother. Staying with her sister-in-law, she finds her companion soon drawn into a satanic cult based in the house whose rites seem to centre somewhat on large-scale sexual congress. 

Black Candles is easily Jose Larraz's most notorious film and probably his best known after the masterpiece Vampyres. And it's notoriety revolves around one scene where a Satanic coven enacts a bizarre rite involving extracting the reproductive fluid of a goat, symbolizing The Beast, as some kind of nauseating balm to be used in preparing the waif like sister of a murdered man for her role as the bride of Satan. Spanish horror from the 1970s has a very special flavor to it that is somewhat of an acquired taste. It's not for everyone. (IMDB)