I've been meaning to watch this for a while, and since it's October, seemed like time.
Overall it wasn't a bad movie. Nothing really too surprising in it...typical of this type of movie where you never know what may be real or in the characters head.
What was impressive was the use of light. Almost all of it is in a building with white walls and decently lit hallways, yet there are areas of pure darkness. Whoever did the lighting for this movie did an amazing job.
The whole movie just has a very uncomfortable vibe to it, but very few jump-style scares. (or at least not to me...I've seen so many of these I can pretty much call out when there will be one).
The main actress does a pretty good job. For the most part, she is the movie. She has an interesting job to play between scared and someone assuming she's tired. Other characters are such bit parts that you don't get much opinion, other than the guy playing Sgt Cohen. Guy nails being a jerk!
