This document discusses the codes and conventions commonly used in horror films and trailers. It outlines the key narrative structures, characters, settings, costumes, props, colors, and sounds that define the genre. Narratives typically follow a pattern of equilibrium, disruption, recognition, attempt to repair, and return to equilibrium. Common characters include the protagonist, antagonist, sex appeal victim, and unlikely hero. Settings are often isolated or abandoned locations. Lighting, colors, costumes, and sounds are used to create an eerie atmosphere and build suspense and tension.