Comment by Magic Marmalade:
"That room is f&$king evil"
...And you know, Samuel L. Jackson's hotel manager's assertion about that room in his hotel to John Cusack's paranormal investigator / debunker is pretty much on the money, as all of Cusack's personal trauma and hidden hurts become manifest when he spends the night in there in order to debunk it.
Terrific realisation of the idea of making the room itself a character in the movie, a malevolent force of nature that persecutes it's occupants to death if they dare try to stay in it.
A nice yet perhaps predictable twist at the end, which is that the twist isn't the twist... er sort of, but very moody, tense, and creepy.
Will give many the chills.