在这部隐藏惊悚/恐怖片中,在一座为白雪覆盖的深山腹地，坐落着一家名为迪瓦恩的精神病患者康复中心。在过去的几十年里，康复中心负责人神经科医生苏珊·卡特（杜恩·福德 Dawn Ford 饰）一直致力于病毒试验，她的研究取得一定成效，却也因为涉嫌对病人进行非人道实验引来不少的非议和指摘。某天，苏珊卡特去世，始终与其关系冷淡的儿子布赖恩博士（西恩·克莱蒙特 Sean Clement 饰）意外成为康复中心的负责人。在朋友西蒙（杰森·布里克 Jason Blicker 饰）的鼓动下，布赖恩等人驱车来到康复中心。
他意外发现，母亲的研究已经进行到了极其可怕的阶段，而这群人也将经历人生中最恐怖的时刻……
The scientist Susan Carter is researching the rehabilitation of addicts using an experimental drug in her rehab center. After her death, her idle son Brian Carter is forced by his friend Simon to travel to the property that he had inherited. Brian and Simon travel with five other friends to the spot and they find that the center is actually an ancient monastery and they have to spend the night. Sooner they are murdered, one by one, by creepy creatures that live in the place.
