This document outlines key elements that are commonly found in horror genre films. It discusses the importance of setting, with many horrors taking place in conventional locations like old mansions or suburbs. Technical elements like low-key lighting, exaggerated editing, and ambient sound are used to build tension. Common iconography in horror includes blood, knives, masks, and religious symbols. Narrative structures typically follow conventions like the "final girl" character surviving at the end. Character types seen frequently are victims, villains, immoral teens, and ineffectual police. Recurring themes include hidden evil, repressed sexuality, binaries of good vs evil, and science gone wrong.