Londoner Ronnie embarks on a journey to India when his mother, Suleka, goes missing and mysteriously ends up in a Kolkata hospital. Before Ronnie can unravel the mystery of what brought his mother back to her homeland, Suleka dies in an apparent cult killing. Further deaths point to a series of past murders that stopped 28 years ago when Suleka left India with her infant son. Until now.　　As the darkness within Ronnie grows and the murders reach their peak, all roads lead to the feared witch of Kolkata's insane asylum.,乐至县人民医院，王香琴皱着眉头接过一杯冷水，她道：“谢团长，你们这里条件实在太苦了，可再苦也不能苦进化者，那些平民闲着干什么，应该来指挥部为我们服务。”……