Proper, old fashioned, horror movie.
Spent most of it either curled up in my (gold class and thus large) seat, hands clamped around Julie's arm, hand, knee, leg or anything else that was nearby. I don't think I actually broke anything though.
Fantastic use of surround sound, cool special effects, and obviously from the director of The Evil Dead movies.
Recommended - with the reservation that I think it would like to be a morality tale, but (IMHO) doesn't manage to pull that bit off.