Slasher movie
A slasher movie or slasher film is a horror or thriller movie in which there is a killer hunting after a group of people, picking them off one by one. Often the killer has a powerful weapon, is crazy madman or insane, and is either unstoppable or cannot die. Common examples of slashers include: A Nightmare on Elm Street, Friday the 13th (1980 movie), Halloween (franchise) and Psycho (movie). Stephen King has written several slasher movies.
Slasher Movie Media
A scene from the Grand Guignol, a format some critics have cited as an influence on the slasher film
Dorothy McGuire in The Spiral Staircase (1946)
Alfred Hitchcock's Psycho (1960) was a huge success on release, and a critical influence on the slasher genre
A scene from Mario Bava's A Bay of Blood (1971), which was notably imitated in Friday the 13th Part 2 (1981)