Black Christmas is a 1974 Canadian horror film, directed by Bob Clark, which has a very large cult following. It was written by Roy Moore, and based largely on a series of murders in Montreal, Canada, around Christmastime. Black Christmas stars Olivia Hussey as a young college student who must deal with a deranged killer lurking in her sorority house. Black Christmas is widely-considered a horror classic. It also features Margot Kidder and Andrea Martin, before either had gained fame in the United States, John Saxon and Keir Dullea round out the cast. The film makes use of dark corners, off-kilter camera angles, and sparingly uses a score by Carl Zittrer to create suspense. It is also marketed with the tagline "If this movie doesn't make your skin crawl... It's on too tight!"

Black Christmas is a 2006 remake of the 1974 film of the same name. It is directed by Glen Morgan. The movie is rated R in the US and 15 in the UK for strong horror violence and gore, sexuality, nudity and language.

A remake of the 1974 horror movie Black Christmas. The movie tells the story about Billy, a young boy who was abused by his mother as a child. While his mother was cheating on Billy's father, she eventually killed his father and kept Billy in the attic - for good, while she was with her lover and starting a "new" family. As Billy's mother fell pregnant with a daughter and treated her with love, which Billy had never experienced with his mother, Billy came out of the attic after years and brutally murdered his mother and her lover. Cut to present day, a group of eight sorority sisters consisting of Kelli (Katie Cassidy), Dana (Lacey Chabert), Lauren (Crystal Lowe), Megan (Jessica Harmon), Claire (Leela Savasta), Heather (Mary Elizabeth Winstead), Megan (Jessica Harmon) and Melissa (Michelle Trachtenberg) and their house mother (Andrea Martin),who now live in Billy's childhood home, find themselves being harassed by threatening and intimidating mystery phone-calls during Christmas Break and as one of the girls goes missing, the girls begin being murdered one by one by no other than Billy... Written by Anonymous

Not all Christmas stories are full of cheer - take the disturbing childhood of Billy Lenz, for example. Born during Christmas, little Billy Lenz suffered from Jaundice because of a liver defect, and was unwanted by his cruel mother (who only saw the husband she'd come to despise when she looked at her son). While she let her true feelings be known to him with beatings and abuse, only his father showed him compassion like a parent should. But on Christmas Eve in 1975, his unfaithful mother gave him one of the most cruelest gifts of all, as she made five-year-old Billy observe his beloved father's brutal murder at her own hands and those of her lover with a claw hammer. Before burying him under the house, she locked Billy in the attic for good, to hold his silence of what he'd witnessed that night. His only contact from then on was when she came to punish him for making a noise or other such trivial nuisances, while she was with her lover and starting a "new" family. As Billy's mother fell pregnant with a daughter and treated her with love, which Billy had never experienced with his mother, Billy came out of the attic on Christmas Eve 1991, taking a rolling pin to his mother's head, and a pointed tree ornament to her lovers eye before leaving his sister as disfigured as he was by blinding her. Before he could finish the job police forced there way in and dragged him off to mental institution and his sister a foster home, whose eye sight was saved in one eye... but not the other. Cut to the present where a security guard has been monitoring Billy's progress since he came into his care, back in 1991. Knowing full well that during this time for fifteen years, Billy has made a break from this asylum, but never succeeding... until now. Far away, his childhood home is now a sorority house, where nine sisters and their house-mother are celebrating the holiday season together ...but tonight they're about to get a surprise visitor... and it's not Santa. Written by suspicous

It's time for Christmas break, and the sorority sisters make plans for the holiday, but the strange anonymous phone calls are beginning to put them on edge. When Clare disappears, they contact the police, who don't express much concern. Meanwhile Jess is planning to get an abortion, but boyfriend Peter is very much against it. The police finally begin to get concerned when a 13-year-old girl is found dead in the park. They set up a wiretap to the sorority house, but will they be in time to prevent a sorority girl attrition problem? Written by Ed Sutton

The story is simple: right before Christmas break, an unseen psycho sneaks into the attic of a Canadian sorority house, menacing the girls with obscene phone calls, and starts to kill them one by one. Written by Kirk Hazen

This 98-minute film is a stark and stylish horror/thriller that turns everyone's favorite time of the year inside out. Olivia Hussey and Margot Kidder star among an ill-fated houseful of sorority sisters celebrating the holiday season. Festivities turn fatal when obscene phone calls break the serenity and it becomes clear that a psychopath is stalking the house. Written by Clint Weiler