Overview
To All a Goodnight is a 1980 American slasher film directed by David Hess and starring Jennifer Runyon and Forrest Swanson. Its plot follows a group of female finishing school students and their boyfriends being murdered during a Christmas party by a psychopath dressed as Santa Claus.
Plot
During Christmas vacation at the rural Calvin Finishing School For Girls, a student is killed when she is accidentally pushed over a balcony during a prank. Two years later, on the Friday before Christmas, the school is emptying out for the holiday; however, five students — Nancy, Melody, Leia, Trisha, and Sam — decide for various reasons to remain at the school, planning to have a weekend get-together with their respective boyfriends. That night, while the remaining girls have dinner, their classmate Cynthia and her boyfriend are murdered outside the school by an assailant with a hunting knife.
The others meanwhile coerce the innocent Nancy into giving their housemother, Mrs. Jensen, milk laced with sedatives to make her fall asleep. After she falls asleep, the girls go to a nearby airstrip to meet their boyfriends, T. J., Alex, Tom, and Blake, who have flown in on a private plane. At the house, the group sit in the living room and talk. Trisha goes to the kitchen to retrieve beer, but is confronted by someone in a Santa Claus suit and mask, who slits her throat. When Trisha does not return, Tom goes to find her. He is confronted by the killer, who chases him outside and smashes his head with a rock. The killer buries each body in the school's garden.
Later, Sam and Blake have sex in the parlor. They are interrupted by the killer, disguised in a decorative suit of armor, who shoots Blake with a crossbow and decapitates Sam with an axe. Meanwhile, Nancy runs into the school's groundskeeper, Ralph, who ominously tells her he believes something evil is about to happen. Melody, meanwhile, seduces Alex in her bedroom and gives him a handjob.
From Wikipedia (CC BY-SA 4.0).