Title from sell sheet. Christopher Lee, Charles Gray, Nike Arrighi. Originally produced as a motion picture in 1968.
Summary:
The Duc de Richleau and Rex Van Ryn are concerned when their young friend, Simon Aaron, is absent from their annual reunion. Upon visiting him, their suspicions are confirmed when they learn of Simon's new affiliation with a so-called 1astrological society2 headed by the malevolent Mocata. Soon, the two men discover that Mocata's society is really a devil cult taking control of innocent people through spells and demonic ceremonies.
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