What a suspensful flick this was! The story is interesting and quite complex. I have noticed that a lot of films kind of branch-off into different sub-plots, but this film doesn't, it has a main story. That makes it easy to follow. The characters were beleivable and that really adds to the horror. I must take away one star, simply because this film was a little to gross than it needed to be. For example, what was the disgusting and un-necessary deal with that guy who was "sinking" into the floor?