I don't think this is too much like SAW after all. that's a good thing, even though I loved the movie. Although there are many similarities between the concept of this story and SAW, they're not too much alike. Your story still remains original and can't be accused for copying. the setting is different, far more brutal but with hints of uncertanity because unlike in Saw, the lead character (Gerard) doesn't have the directions, guidelines and the rules of the game cleared up. he has to figure the game out as he's playing, which was something i didn't see in SAW. (i've only seen the first one though, since i've heard that the following movies were just about the evil filmakers trying to ride on the wave of success for a bit longer =D )