This opening scene from Nightmare on Elm Street establishes an unsettling atmosphere through its mise-en-scene, camerawork, and sound design. The industrial setting removes the audience from comfort and isolates the innocent female protagonist. Close-up shots of her fearful expression and the mysterious killer applying knives to their hands introduce the threat. As the girl wanders alone among machinery, the camera isolates and follows her to build suspense without revealing the source of her fear. Unusual sounds like the killer's heavy breathing and creepy keyboard music enhance the strange and frightening tone.