This document discusses common codes, conventions, and tropes found in horror films. It defines codes as systems of signs that create meaning, including technical codes involving equipment and symbolic codes showing characters' feelings. Conventions are generally accepted ways of doing things within a genre. Common horror film conventions include isolating characters in secluded locations, characters forgetting threats, power and phone lines being cut off when danger arises, characters investigating strange noises and running upstairs instead of outside to escape threats.