Beyond the Door III is a 1989 Italian supernatural horror film directed by Jeff Kwitny, and starring Mary Kohnert and Bo Svenson. It follows a young American coed who, while traveling on a train during a class trip in Yugoslavia, is targeted by a Satanic cult. It is the final film in the Beyond the Door trilogy, a series of unrelated films linked by a common title for marketing purposes. It was released twelve years after the second film in the trilogy, Beyond the Door II.