In the film, Kelli is depicted as a member of the Delta Alpha Kappa sorority. Due to being an only child and not having a large family, she decides to spend Christmas with her sorority sisters. Unfortunately, their sorority house was once the childhood home of notorious murderer Billy Lenz. During Christmas, Kelli and her sisters begin getting obscene phone calls. Realizing that Billy has returned home, the girls attempt to survive the night as, due to a snowstorm, help is unable to reach them.