The opening horror film 'Seeking Possession' effectively uses conventions of the genre. It begins with mysterious yet tense credits that fade in white, matching the dressed girl. Unsettling sounds build tension, from the institution's white noise to the increasing drone and muffled music. The camerawork maximizes anxiety through varied shots like tunnels viewed from high and low angles. Grey and red colors contrast and reference blood, fitting with the ominous title. The mise-en-scene creates an isolating and threatening atmosphere through its dark location, symbolic barriers, and positioned dead bodies.