This movie is truly scary. I went to the midnight show alone, and I live alone, and coming home I turned on all the lights and had to sit up a few hours before I could go to bed, and even then I couldn't get the movie's scary scenes out of my head. For the one who said this movie "isn't scary" - you must think it takes blood and gore to be scary, which is quite childish. This is real, honestly scary stuff. It builds and builds tension and paranoia and gets scarier and scarier all the way through. Everyone was scared in the theater, and it wasn't just the girls who were screaming out loud. I actually had goose bumps all over - that has rarely ever happened to me at a movie. If you love to be scared, GO SEE IT!!!!