A behind-the-scenes retrospective made for the twenty-fifth anniversary of the classic horror film, The Exorcist. Includes interviews with Linda Blair and the other stars of the film, along with commentary from the director and writer on some of the deeper meanings behind the elements they used to terrify their audiences, and previously unreleased footage including make-up tests and deleted scenes.

愁云惨淡的华盛顿市，一幢普通公寓内，单身妈妈克莉丝（艾伦·鲍斯汀 Ellen Burstyn 饰）和女儿芮根生活于此。然而近一段时间，克莉丝却被女儿种种怪异的举止折磨得烦躁不堪。芮根的行为举止怪异，迥异常人。克莉丝带她求医问卜，终无所获，甚至精神科医生也束手无策。万般无 奈之下，几近绝望的母亲求助于莫林神父（马克斯·冯·西多 Max von Sydow 饰），一个有着丰富驱魔经验的老者。恐怖的夜晚，神父与藏身少女体内的恶魔展开连番较量。这是一个注定让无数人永生难忘的恶魔之夜……
本片由William Batty根据1949年一起真实的驱魔事件创作的小说改编，荣获奥斯卡金像奖最佳混音奖和最佳改编剧本奖。