Terror Train

Three years later, the members of the same fraternities and sororities hold a New Year's Eve costume party aboard a train. The killer dresses himself in Groucho Marx mask, allowing him to board the train unnoticed. As the train journeys into the wilderness, the killer wanders amongst the students, who believe him to be Ed. Alana is sequestered in a locked compartment for her safety, which the masked killer infiltrates with an axe, and she is pursued through the train.