This film, to me at least, is more for people who are into filmmaking itself rather than just sitting down and watching a movie. The camera angles, transitions, set up of scenes, etc. Its extremely intelligent. I believe he made this movie to be left to the imagination. To see how far imagination can take you. Especially when you really think about how, if this was a real occurrence, it would mess with someone’s brain. True terror is something that could happen in our everyday lives. Not just a monster wielding a knife.