年轻女孩露西·克莱沃（Chloé Coulloud 饰）在某看护机构找到工作，她上班的第一天即是前往一幢位于郊外密林深处的古老别墅，照看在那里陷入深深昏迷并依靠医疗设备维持生命的前芭蕾舞教师德博拉·杰塞尔（玛丽-克劳德·皮塔卡拉 Marie-Claude Pietragalla 饰）。传说这幢别墅里藏着价值连城的宝贝，露西在男朋友威廉（Félix Moati 饰）的怂恿下，和他们的朋友本（Jérémy Kapone 饰）在一个万圣节的晚上潜入别墅寻宝。然而经过一番寻找后却发现，别墅内除了杰塞尔夫人似乎还有其他人的存在，而那正是夫人本应早已死去的女儿。 　　匪夷所思的恐怖事件接连发生，露西他们将经历了永生难忘的一夜……"It's young Lucy's first day as a trainee in-house caregiver. She visits Mrs Jessel, an old woman who lies in cerebral coma, by herself, in her large desolate house. Learning by accident that Mrs Jessel, a former dance teacher of repute, supposedly possesses a treasure somewhere in the house, Lucy and friends William and Ben decide to search the house in the hope of finding it. At night, they get into the house, which reveals itself to be increasingly peculiar. Their hunt for Mrs Jessel's treasure leads them into a horrifying supernatural series of events that will change Lucy forever..."