Black Christmas Backstory REVEALED | (Billy didn't kill Agnes...) | Black Christmas Explained

Hello everyone and welcome to today's installment of Beyond The Mask. Today, we're going to be taking a look at the backstory of Black Christmas' sorority serial killer, The Moaner (Aka Billy). Little is known about the character on-screen, but directory of the 1974 movie, Bob Clarke, shed some light on what exactly Billy's backstory was. In today's episode, I have written my own prequel of sorts, based off of Bob Clarke's writings in the hopes of expanding this long-wondered backstory about who...this killer really is.