Students attending a Christmas party at a sorority house with a sinister past are stalked by a bloodthirsty killer disguised as Mrs. Claus.

What is supposed to be an educational and collaborative weekend professional development session for the English Department of Prescott High School instead turns into a blood soaked nightmare when a masked killer targets them.

Six friends become prey for a sadistic psychopath when they decide to ditch their high school's after prom party for their own celebration at a secluded house.