Ring Of Darkness (1979)
 

How about this Italian Satanism film. I've never seen it but its got a great Stelvio Cipriani score and quite a cast including Lara Wendel, John Phillip Law, Anne Heywood, Ian Bannen, Valentina Cortese, Irene Papas, and marisa Mell.

Imdb lists a running time that is 20 minutes longer for the Italian version.

But it's just not a very good film sadly. I have the Italian video release and it's the same as the English version.

That's unfortunate. A poster on another thread said Cipriani's score was reused in PIECES (a film whose cult following I just don't get) and I was interested in seeing the film it was more suited to.

The films not bad, but not great. Could pose a problem though as the lead girl in it was apparently 14/15 at the time and does nude scenes.