With the right setting, perfect camera angles and some excellent acting you don't need a lot of special effect, blood or lame monster/murderer around corner scenes to make a real good horror film. You wont jump out of your chair to much but throughout the film you always feel that indescribable feeling that only a really good horror movie can communicate. The very first scene sets the mood and they keep it up all the way to the end. The story might not be very unique but really its all a matter of presentation. And this film has really presented it in a very rare and intriguing way. If you want a film you can just watch, scream to and forget the next day this might not be for you. But if you like me really enjoy those films that really gets to you then what are you waiting for?