Jennifer is an Australian girl on the run from her past who washes up in Amsterdam. In a desperate attempt to stay one step ahead of the authorities, she joins a coach-load of tourists embarking on a tour of Holland's world famous windmills. When the bus breaks down in the middle of nowhere, she and the other tourists are forced to seek shelter in a disused shed beside a sinister windmill where, legend has it, a Devil-worshiping miller once ground the bones of locals instead of grain. As members of the group start to disappear, Jennifer learns that they all have something in common - a shared secret that seems to mark them all for doom.
尼克•维斯特(Andrew Howard 饰)和女友萨咪(Pollyanna Rose 饰)闯进废弃的黑水精神病院寻找刺激,他们在这里发现一张造型奇特的椅子。受药物和性欲刺激,两人就在这张恐怖的椅子上寻欢作乐。但萨咪却突然力气死亡,尼克则作为头号嫌疑人被警方逮捕。他不断宣称女友死于超自然力量,没人相信他的解释,尼克反而被送入精神病院。 4年后,精神病专家威拉德(David Gant 饰)对尼克的案例颇感兴趣。他和几名学生找到仍接受治疗的尼克,并且不顾主治医生的反对坚持将尼克带到了当年的案发现场。他的好奇心无意中推开了恐怖与死亡的大门……