Eight strangers are imprisoned in a derelict house, where they’ll die from a slow-acting nerve gas unless they can solve the puzzle leading them to the antidote; meanwhile, the police-detective father of one of the prisoners confronts the evil mastermind behind it all. “Oh yes, there will be blood,” promise the posters, and the movie delivers, but there isn’t enough room on a poster to describe all the things this slack-jawed Se7en knockoff doesn’t have: plot, characters, suspense, style, etc. The actors mumble and mutter their lines in an effort to make the dialogue sound natural, but it doesn’t work. It’s just bad dialogue that’s difficult to hear. The scariest thing about the movie is trying to imagine someone who would enjoy it; maybe there’s one behind you right now.