Tallie Cochrane got her SAG card from acting in this film. She said later she thought it was just awful. She had done hardcore sex movies before this that she said she was less embarrassed about than this one.
Lloyd Kaufman, founder of schlock B-movie studio Troma Entertainment, was the production manager. He also plays one of the cult members.
When Troy Donahue accepted the part of Moon, he was in the midst of personal turbulence. Despite his relative fame making projects for Warner Bros., he had been paid far less than the lifestyle he'd cultivated, and he had developed substance abuse problems that bankrupted him. Going full bore into a counterculture look and mindset, and frustrated at his stasis in Los Angeles, he moved to New York, getting some occasional work, but at one point so destitute he spent the summer homeless in Central Park.
Director Robert L. Roberts said his goal wasn't to tell the Charles Manson story, but to warn people the Sharon Tate tragedy wasn't just an isolated incident. He said, "Many other cults are murdering people. They're just not as publicized. There are a lot of so-called families like Manson's with one dictatorial leader who controls his group through drugs, pills, sex, LSD and many other ways. These people are a threat to the fabric of society because they commit murder without conscience."
While promoting the movie, star Troy Donahue said he felt the movie was going to be a bigger hit than Love Story (1970). It wasn't.