This document discusses common conventions in horror movie settings, characters, and themes. For settings, horror movies often take place in isolated, dark locations like large old houses, basements, or abandoned warehouses. Main characters typically include villains, ghosts, psychopaths, or serial killers. Common themes involve life and death, good and evil, religion, sex crimes, and the supernatural. Horror movies also frequently use dark colors, weapons, religious symbols, masks, dolls, and inhuman entities to reinforce the genre and induce fear.