While I'm no movie expert, I am a horror fan and not easily scared. Sadly, there's so long between a horror movie which really delivers, but this one did rather well I thought. What makes it all the more joyful, is the lack of reliance on special effects. It's well paced and uses the art of suggestion rather than cheep jump-scares, a style I appreciate. Furthermore, I found myself sympathizing greatly with the female protagonist, another key element in a good horror movie. This movie keeps the viewer speculating and guessing until the end, which I find is the turning point of a scary movie. Nothing is more scary that the unknown, as we well know. This brings me to the only regret I have about this movie, -the ending. I won't reveal anything, but as most suspense movies, the ending leaves the viewer a bit disappointed. I for my part can forgive the movie for this, since it relates to the point above. It's the unknown which is most scary, the sum of possible explanations. As soon as the movie settles on one specific explanation, most of the suspense is diffused. Don't let this keep you from viewing the movie though. I promise, it postpones the inevitable solution as long as possible. All in all; no masterpiece, but delivers as a horror movie.