1) The opening sequence follows a man walking with his hood up towards a house. As he approaches the door, the camera zooms in on him.
2) When the man reaches the house, there is a loud smash on the door that the audience cannot see. The woman inside screams and the screen turns black.
3) All that can be heard is a fast heartbeat, and then the title of the film - "NEXT DOOR" - appears in dripping blood-red text before the screen fades to black.