Simon, King of the Witches is a 1971 film directed by Bruce Kessler and starring Andrew Prine. Not technically a straight horror film as the title might suggest, it also falls in the realm of camp and psychedelia. It is considered a cult classic.
The misleading advertising campaign, which set up Simon as a Satanic sex orgy film cashing in on the Charles Manson trials, seriously hurt the film at the box office. The film is practically bloodless, with only brief nudity which, again against the norm, actually serves a purpose in the story but no explicit sex and no parallels whatsoever with Manson. Like many other more eccentric 70s low budget genre films, Simon has become a cult film over the years, albeit an extremely marginal one.There was also a paperback novelization of Simon by Baldwin Hills, more than likely a pen name, which took the satirical camp of the film one step further into fullon absurd comedy. Long since out of print, the book comes up occasionally on eBay and online used book stores. ........
Source: Wikipedia