The Beyond the Door Trilogy is an Italian horror series of three originally unconnected films that were retitled to be part of a supernatural franchise for the American market. The series started in 1974 with Beyond the Door before ending with Beyond the Door III in 1988. The only loose connections between the films are that all three were Italian productions, Ovidio G. Assonitis produced parts I and III, child actor David Colin Jr. starred in Parts I and II (but playing different characters) and the supernatural theme of possession (a woman in part I, a child in part II and a train in part III). Films Beyond the Door (1974) Beyond the Door first opened in Italy under the title Chi Sei?. American International Pictures initially expressed interest in distributing the film, but Film Ventures International ultimately acquired the film for distribution in the United States for $100,000. The cut released theatrically in the United States runs 97 minutes. It was shown as early as May 2, 1975 in Houston, Texas and became a huge box office success grossing $15 million at the box office largely due to its successful promotional campaign with TV spots and posters. Beyond the Door II (1977) To cash in on the success of Beyond The Door, Film Ventures International purchased the U.S. release rights to Mario Bava's Italian horror film Shock and retitled it as Beyond The Door II due to it being Italian and having a similar theme of possession. They even utilized the same successful propomotional poster design that helped the original become a success. The film was intended for a late 1977 release to capitalise on the success of Exorcist II: The Heretic, but when that film bombed at the box office, plans to release Shock in the U.S. were shelved. The film was eventually given a limited release in 1979. . Beyond the Door III (1989) Beyond the Door III was released in 1989. Scripted by Sheila Goldberg and directed by Jeff Kwitny, the film was shot in Serbia under the title "The Train". The film, again had no ties to either of the previous two. Ovidio G. Assonitis acted as producer on the film and financed it through his company Trihoof Investments. It is also known as Death Train and Amok Train. It was retitled to Beyond the Door III for its U.S. release by RCA/Columbia Pictures Home