During a hazing, a fraternity of pre-med students has a particularly sinister prank in store for one their more timid pledges (Derek MacKinnon). With the help of a coed, Alana Maxwell (Jamie Lee Curtis), they pull off the prank so well that the pledge needs to be institutionalized as a result. After several years pass and people forget the incident, those involved with the prank are ready to celebrate their graduation by having a costume party on a train, but they haven't escaped their past yet.