The slasher genre is one of the most popular and gruesome subgenres of horror of all time. While some slashers have stood the test of time for decades, others have not. It’s defined as a killer who stalks and murders a group of people, sadistically racking up a body count, usually in horrific ways, with a blade or other weapons. It’s argued the first slasher film was Alfred Hitchcock’s Psycho back in the 1960s, with a major breakout and renaissance in the 1970s and 80s, producing work that inspired and redefined the genre forever.

https://screenrant.com/slasher-movies-true-horror-classics-and-overhyped-list/