The one thing that ruined the entire movie for me (SPOILERS)
***Disclaimer***
Do not read unless you are possibly willing to have the movie ruined for you as well:
During the final shot, you can see one of the girl's eyelids twitch. Also, the first shot of the dead girls shows them positioned in one direction, then when it shows them again, they have changed positions!
Arggghhhh!
I know this may be anal, but I can't help disliking the movie because of this minor (but very much preventable) mistake.
Sorry.