without say how it end and it be sufficient to say that the whole thing degenerate from about five minute before the end . if the standard have be maintain throughout and the movie would be worth a seven . one wonder in a way why a woman be add to the cast . ( well not really . ) the premise be a good one the situation the victim find themselves in be pretty terrify and it rather well do and but you get the impression the maker of the film lose interest towards the end and or a a previous contributor say and they change writer and hand over to someone else .