This document discusses narrative theory and its application to different genres. It describes several narrative theorists including Vladimir Propp, Tzvetan Todorov, and Roland Barthes. Todorov's theory that narratives typically involve an initial state of equilibrium being disrupted by an outside force fits well with the horror genre, where a protagonist's normal life is threatened by an antagonist or monster. Barthes' concept of "enigma," where the audience must solve a puzzle, also applies to horror narratives that present mysteries for characters and viewers to resolve. The document analyzes how these narrative theories are relevant to understanding the horror genre.