Slasher films are a subgenre of horror movies that typically feature a killer stalking and murdering a group of people, often teenagers. These films often include graphic violence, suspenseful music, and a final girl—a character who survives to confront the killer. Iconic examples include Halloween, A Nightmare on Elm Street, and Friday the 13th. The genre emerged in the late 1970s and gained popularity in the 1980s. Slasher films often explore themes of morality, fear, and the consequences of reckless behavior. They have influenced many other genres and continue to be a staple in horror cinema today.