This film combines a hard history of one psychokiller whit a incredible use of the camera, i have never seen this before an after, the camera turns around the actors realizing imposible movement and hallucinating travellings (e.g. in the woods).The name of the camera is Risinsky, one of the best that i see, i don´t know much about him but i think that is a master. If you can see this film is a masterpice of the psychotrillers.