I rented this purely based on having seen a trailer for it on another DVD. It looked gripping and like it had all the makings of a very tense thriller/horror. Unfortunately it left me dumbfounded. Like the only other reviewer so far said, it was all going along very nicely, tense, fairly realistic as to how they'd react once locked in (with the notable exception of the overly dramatic suicide). Then it suddenly turned into one of those films that just finishes, without any explanation as to what on earth happened. I don't know if I missed something, or you were supposed to assume that it had all been in Jimmy's head. One of those movies where it suddenly pulls a 180 and leaves you completely confused and wondering what just happened. Great for tense music, clever steamy hazy photography, tension building, but then sadly ruined at the end.