When a beautiful model, Alison Parker (Cristina Raines, Nashville, The Duellists), rents an apartment in a gloomy New York brownstone, little does she realize that an unspeakable horror awaits her behind it's doors... a mysterious gateway to hell. Alison likes her eccentric new neighbors, so it comes as a shock when she's told that, except for a strange old priest, she's the only tenant. Based on Jeffrey Konvitz's best-selling novel, this contemporary gothic chiller features amazing special makeup effects by the legendary Dick Smith (The Exorcist, Little Big Man) and an incredible assemblage of stars including Chris Sarandon, Ava Gardner, Jose Ferrer, John Carradine, Burgess Meredith, Beverly D'Angelo, Jerry Orbach, Jeff Goldblum, Tom Berenger and Christopher Walken. Director Michael Winner (Death Wish) comes up with something to terrify everyone in this spine-tingling exercise in supernatural horror.