Which famous horror novel by William Peter Blatty was published in 1971?

The uncut version of the movie is equally haunting.

Still scary today. The part where her head spins and she vomits peas was pretty horrific. And especially when she’s raping herself. Made me sick.

CyanJaguar62, same here!

Too scary for me -- I saw the movie and read the book but decided never again!

soundtrack was equally as haunting as the movie performed by Mike Oldfield