Graduation night. Forty exuberant high school seniors climb abroad the train for an all-night ride of fun and games. Unknown to the, so does a killer. An escaped lunatic disguised - even from the audience - begins to take his unsuspecting victims, one by one. The train cannot stop, and neither can the killer as we are dragged from one horrifying moment to another..until the killers identity is finally revealed in a truly shocking climax.