Terror Train(1980) avi

A college fraternaty prank goes bad and student ends up in the mental ward. Four years later, it's graduation time, and the members of the fraternity decide to have a costume party aboard a train trip to celebrate thier graduation. Unknowingly to them, a killer has slipped aboard, wacking them off one by one, disguised in the costumes of the victims.



http://www.imdb.com/title/tt0081617/