The document discusses a psychological horror film called Psychosis. It uses common horror conventions like settings and editing techniques to develop tension and immerse the audience in the main character's paranoia. The film features two main settings - a suburban house and woods - that contrast safe versus dangerous spaces. Fast pacing and unsettling sounds are used in editing to suggest the character lacks control. Costuming also provides contrasts to attract or avoid attention from different characters. Overall, the film challenges conventions by exploring the mind of a person suffering from paranoia through conventional horror elements.