Looks interesting. I'll have to check and see if netflix has this. Seems around the same time as Exorcist. Though the comments dog it as a rip off, I didn't see it more than another demon possession movie. Which again I find interesting. Perhaps as it holds no horror for me.
I think Omen might be one of the best movies of this category though.
"That's the problem with drinking ... If something bad happens you drink in attempt to forget; if something good happens you drink in order to celebrate; and if nothing happens you drink to make something happen." -- Charles Bukowski