BasedOnAGreatBigLie? Maybe. Scary? Oh, most emphatically.
* Some of the distortion is fairly creepy, like when Abbey is screaming and it looks like she's lifting out of herself. And directly after that, with the doctor just sitting there. [[spoiler: Unconcious and with her jaw ''hanging way too wide open''.]]
* Scott suddenly sitting bolt upright and screaming during his hypnotherapy.
* [[spoiler: "I AM...GOD"]]
* Intentional or not, the '''real''' Abigail Taylor was one of the scariest things in the movie.
* [[http://www.youtube.com/watch?v=d1hy4lmKfz4 "Hypnosis"]], (starting at 7:05) from the soundtrack.