两个淘气的姐妹

　　一生化公司在沼泽地做各种人体实验，当年被化学感染的博士住在此处伸张正义！

　　The boisterous, arrogant professor Challenger, a reputed biologist and anthropologist, dares the London Zoological Society to mount an expedition to verify his spectacular claim, without physical proof, that his previous expedition to the Amazonian basin found live dinosaurs. Apart from him and his 'socialite' counterpart, professor Summerlee, it consists of experienced discoverer Lord Roxbury, the young reporter Ed Malone -who got publicly struck down with Challenger's umbrella at his arrival- and Jennifer Holmes, Malone's news agency's boss's daughter, essentially as conditions for putting up the money. In Brazil they are joined by Jennifer's brother David and local 'guide' Manuel Gomez. They soon discover the dinosaurs are real and dangerous, like giant spiders, but loose their helicopter and thus are desperate for a way down from the isolated plateau. They learn Roxbury knew about the fate of Burton White, an explorer whose diary they find, thus presume to be dead, in search of diamonds, and confirmation of the local tribe being the lethal guardians of the plateau's secrets, but also get surprising help...

　　故事发生在万圣节的当晚，塔拉（Jenna Kanell 饰）和道恩（Catherine Corcoran 饰）醉醺醺的从一个派对中离开，走在清冷的大街上，两人打算去一家披萨店弄点吃的，一个小丑打扮的男人尾随她们也进入了店里，虽然小丑的样貌十分可怖，但个 性似乎还挺可爱的，除了他把店里的厕所弄的一团糟，气炸了店主。　　之后，塔拉和道恩离开了店里，塔拉进入了一间公寓上厕所，道恩在路边等她，小丑再度出现在了她的身后，这一次，小丑想做的便不仅仅是逗她笑这么简单了。小丑打晕了塔拉，当塔拉再度醒来时，映入眼帘的，是被倒挂的道恩和在一边手持电锯的小丑。

　　与丈夫（安东尼·拉帕格利亚饰）庆祝完结婚25周年后不久，丈夫出差在外，达西（琼·艾伦）在车库找电池，却无意中发现丈夫就是新闻中说的“臭名昭著的连环杀手比蒂”。　　影片的小说蓝本是金2010年出版的短篇小说集《暗夜无星》（Full Dark, No Stars）中的一篇。金在接受采访时说，小说的灵感来自于2005年被捕的美国“BTK连环杀手”丹尼斯·雷德（Dennis Rader），他就有一位结婚三十四年的妻子宝拉（Paula），对他的杀人行为毫不知情。金表示，小说探讨的是，人与人之间永远不可能完全了解，即使是最爱的人也一样。