The document outlines common elements of the horror genre including settings, lighting, themes, characters, and narrative structures. Typical horror settings include isolated places at night like cabins, houses, asylums, and castles. Horror films also use low lighting, props like knives and masks, and makeup involving blood and pale skin. Common themes involve the natural vs supernatural, the unknown vs known, and innocence vs evil. Character archetypes include villains, victims who prevail, ignorant teens who are killed, and ineffectual police officers. While horror follows classic narratives, it sometimes offers ambiguity and uses "final girls" as complicated victim/heroes.