Due to the ratings success of the TV-movie "Fear No Evil" a year earlier, Universal decided to bring back demon-fighting David Sorell (Louis Jourdan) and have him deal with a sinister cult of devil-worshippers among the "beautiful people" of southern California. Chief among those are Academy Award winner Anne Baxter, John McMartin, and Diana Hyland (the beloved older paramour of the then twenty-something John Travolta). Wilfred Hyde-White, Jourdan's friend from the first film, returns in this one, while "The Rookies" Georg Stanford Brown is on hand as an artist with connections to the cult.
I recall that there was much uproar when the film aired because its conclusion left many viewers confused and disappointed in the resolution of the storyline.