在南方某城市公安局的录相室内，播放着由国际卫生组织转来的次料：一个名叫托尼．平克尔顿的爱滋病患者，临终前讲出了他在本市南方大学任教期间曾与三个中国女孩子有过性关系的事。为了尽快查到这三个女孩，组成了林志刚、宋明如、陈泗东和南方大学外事办女秘书王小雨四人特别调查小组。经过一番调查，最终找到了三个女孩子。最后本影片向人们指出了人的行为要向社会负责，同时也宣传了防止艾兹病的知识。
The film opens in a bleak police station where celebrated war correspondent Kate Rafter (Seagrove) faces questions from a psychiatrist, Dr Shaw (Kurylenko), as they work through the painful events of Rafter’s life. A horrific incident in war-torn Iraq and the death of her mother (Steed) have brought a haunted Rafter home to Herne Bay, a place she believed she had escaped forever. Her resentful sister (Friel) has not made her sister welcome and her forbearing husband Paul (Miles) fails to broker peace. Whilst packing up her mother’s belongings from her childhood home, Rafter comes to believe there is something strange and terrifying happening in the house next door.
在明尼苏达州北部的“边界水域”中，六个老朋友之间的周末露营之旅在神秘的环境下死亡后变得悲惨起来，随着他们企图在本集团内揭露杀手，引发进一步的动荡。
