Probably the worst film I've ever seen. The entire film is weak and attempts at psychological thrill just left me bored and waiting for the film to end already. Goes on for way too long and easily predictable.
A genuinely frightening film, from the eerie cinematography and locations down to the strange, pallid facial expressions of each character. One of the strongest sound designs in a horror film - it reaches into your psyche and forces you to imagine horrible things.
It's unfortunate that there were a couple of CSI cast members in there, preventing me from taking the movie too seriously. Concept was interesting, but the ambiguity of the nature of the main antagonist (trying to avoid spoilers there) added an element of the supernatural I didn't enjoy. A few cool scenes though, more of a "might as well watch" movie.
A lot more understated than I expected, but I was still somewhat pleasantly surprised. There's a subtleness to the atmosphere that feels like a whisper against your arm, or a gentle breeze of wind in your hair. You know there's something wrong, and although the revelation isn't jawdropping, the overall progress of events and the mood of the film are worth recognizing. I just wish there'd been more oomph.