癌症药研发专家冯伟峰（温兆伦 饰）继承了舅公的豪华别墅，带着母亲、妻女和舅公的老管家一起生活。但自从住进别墅，却发生了一些列匪夷所思的事情。妻子爱玲（杨斯 饰）经常深夜被诡异的声影惊醒，女儿佳佳离奇失踪。很快有人来电声称绑架了佳佳，一家人却不敢报警，只请朋友陈勇（贺刚 饰）帮忙调查。此时冯伟峰又接到匿名电话，有人要出重金购买他的新药配方，被他断然拒绝。陈勇深入调查后发现这个家庭里的每个人都有嫌疑，可谓是案中有案，迷雾重重。但最后的结果却完全出乎他所料……A doctor moves his family into a mansion. His wife hears weird noises at midnight, then his daughter disappears mysteriously. His detective friend begins to look into this case, only to suspect everyone in this family is somehow complicit.