It creates a very unsafe, eerie and scary atmosphere from the beginning, to set the tone right for this gritty, ingenious horror movie. Whenever Morgan Freeman and Brad Pitt are in a film together, you can automatically expect it to be a blast. And this one is no exception, it's very good , very mysterious, full of blood and grisly images and a twisted shock ending. Definitely one of the best horror movies ever made. Recommended !!