Underrated thriller that despite being slow and meandering still manages a few nice shocks and is never less than interesting. This attempted to match The Exorcist for near-the-knuckle images and themes, and although it lacks that film's lasting power to haunt it does have a strong line in perversity that may surprise the most jaded unshockable viewer. Christopher Lee is great as the smiling, gentlemanly paganist - Natassja Kinski looks great and goes through the film like a day-dreaming naive child, which is exactly what she is supposed to be. Admittedly the creature at the end could easily have climbed out of a cornflakes packet as the depths of hell, but it doesn't ruin the film. Channel 4 recently showed a wide-screen version. It was well worth taping.