青春靓丽的女子莫丽·哈特莉（莎拉·林德 Sarah Lind 饰）和朋友们在一家舞厅庆祝她的24岁生日，当晚她似乎受到什么神秘力量的蛊惑，整个人变得有些神志不清，无法左右自己的言行。次日一早，两名警察上门，结果在莫丽的浴室里发现两具尸体。在此之后，莫丽被诊断精神上有问题而关进了精神病院。病院的治疗并没有任何好转，莫丽的异状反而愈演愈烈。种种异象，让担任主治医师的女性开始相信这个女孩的确被恶魔附体。与此同时，病院内还住着前牧师约翰·巴罗（戴文·萨瓦 Devon Sawa 饰），他当初经历了一次刻骨铭心的失败驱魔仪式，此刻更被教廷剥夺了神父身份。 医院内神秘可怕的事情愈演愈烈，约翰不得不迎接魔鬼的挑战……
A 'mockumentary' about David Moore, the filmmaker who first dreamed of sharks in a tornado and brought on disaster by using real sharks. The first SHARKNADO was to be a movie never seen, a crime never reported, a tale never told. Until now.
Sometimes the past comes back to bite you. Two rival mob families are transferred from the Witness Protection Agency by mistake to same city, Temecula, CA.
Sarah, a depressed college drop out, must uncover her family's twisted history, and her own greater purpose if she is to defeat the Salem Doll, a monstrous wooden creature that terrorises Sarah and her loved ones.