Over the last thirty years, moviegoers have endured countless films that carry the tag “slasher” – nearly all of them being direct descendants of two classic horror films, Bob Clark’s Black Christmas (1974) and John Carpenter’s Halloween. Since then, they’ve become an efficient source for studios to make quick cash, as they’re inexpensive to make and usually bring swift business year-round. A surefire way to get your slasher seen? Tie it to a holiday, in a move we see major studios trot out nearly every year. To that end, we’re going to tick off a few of these often-dubious but usually fun films – April Fool’s Day, Happy Birthday to Me, Silent Night, Deadly Night and the May Day-themed God Told Me to Kill.