美国边陲的新英格兰小镇上,一个名叫托马斯(Fabrizio Jovine 饰)的神父上吊自杀,他的死导致地狱之门洞开。居住在纽约的灵媒玛丽通过感应看到了这一切,她深知地狱之门打开的恐怖后果,慌乱之中竟摔下楼去。警察认定玛丽已经死亡,第二天将其下葬。名叫彼得•贝尔(Chirstopher George 饰)偶然经过公墓,听到墓地中传来的呼叫,终于将玛丽解救出来。 彼得从这个灵媒口中得知,地狱之门是魔鬼进入人间的必行之路,如果不及时关闭,万圣节那天将有成千上万的幽灵和鬼魂充斥人间,为害世人。为了保护无辜的生命,彼得和玛丽共同前往地狱之门的所在地……In the small New England town of Dunwich, a priest commits suicide by hanging himself in the church cemetery which somehow opens the gates of hell allowing the dead to rise. Peter, a New York City reporter, teams up with a young psychic, named Mary, to travel to the town where they team up with another couple, psychiatrist Jerry and patient Sandra, to find a way to close the gates before All Saints Day or the dead all over the world will rise up and kill the living.