Slasher films are a sub-genre of horror films that involve a psychopathic killer murdering various victims using weapons like knives and chainsaws. They originated in the 1960s with films like Peeping Tom and Psycho and became popular in the 1970s with movies from directors like Wes Craven and John Carpenter that focused on holidays and special occasions. The 1974 film Black Christmas is considered the first true slasher film and established conventions like an unknown stalker, isolated teenage victims, and graphic violence from the killer's point of view.

1. SLASHER FILMS Slasher films is a sub-genre of horror films genre which usually involves a psychopathic killer, murdering a broad range of victims. Slasher films uses a broad range of weapons to prey on its victims ranging from a knife to a chainsaw, the use of unconventional weapons such as a scythe depicts the strange nature of Slasher films, as it conjuncts with the theme of a psychopathic killer. Slasher films in contrast, to any other horror films specially concentrates on the act of murder.

3. Influential development: Another influence which helped stimulate the slasher sub-genre was the Italian Giallo. This film genre was made up of films done by various Italian directors, most notably Dario Argento and Mario Bava . These films were known for extended, graphic murder sequences and bizarre storylines. Probably the most notable are Bava's Blood and Black Lace (1963) and Twitch of the Death Nerve (1971).

6. DECLINE The profitability of the slasher genre began to dwindle, and controversy over the subject matter would eventually persuade some studios to stop producing and distributing slasher films.