The camera work, sound, and lighting in the trailer for The Strangers are used to build tension and establish it as a psychological thriller. A two-shot introduces the main characters and their relationship. Extreme close-ups draw attention to actions like locking the door that suggest themes of security and the unknown. Shots frame characters from behind to imply they are always being watched. Sudden diegetic sounds like a dropping tool create unease against the peaceful music. Screams and an axe attacking the door drive the tension higher as the story progresses to another level. Low key lighting sets the dark, scary mood for the nighttime scenes.