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...

After a series of disturbing supernatural events in his home, Joel, a young  single father, comes to suspect that his young son may be possessed.　　约尔是一个单身父亲，在他的家中出现了一些列超自然灵异事件滋扰以后，他开始怀疑自己的小儿子是否被附...

Meeting his girlfriend's family for the first time, Ryan must prove his intentions with their daughter, Sarah, and win the approval of her father, Greg. All the while masking his jealousy for Sara...