The document discusses several common codes and conventions in typical horror films. It describes how the monster often wears a mask to hide its identity and carries a deadly weapon. A common plotline involves a final girl who is usually the lone survivor and gains confidence over the course of the film. Groups of friends or teens are often hunted by the killer. The first girl to die is usually the most sexually promiscuous. Horror films also typically feature dark, isolated locations that add fear and suspense. Both film noir styles from the 1940s-1950s and German expressionism have influenced the visual styles used in modern horror films.