The 25 Best Horror Movies on Shudder (Which Is Fully Worth a Subscription, BTW)

Black Christmas got a modern update in 2019, and while that film is more progressive, the '70s slasher flick is still a nail-biting entry into the genre. Set over holiday break at a sorority house, a group of young women receive increasingly creepy calls that quickly lead to a much darker situation.

Watch Black Christmas on Shudder.