片中卡雅·斯考達里奧飾演伊曼紐爾，她迷上了長得酷像她死去母親的新鄰居(杰西卡·貝爾飾）。為了照顧她新生的孩子，伊曼紐爾陷入了一個虛幻易碎的世界，并成為了那里的守門人…

　　一個連環殺人犯前往馬薩諸塞州小鎮，想把鎮上居民打造成感恩節活人雕刻版。

　　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...

　　經過上一集的慘烈屠殺，湯米（湯姆斯·德科 Thomas Dekker 飾）僥幸和一名女子逃生，然而厄運如影隨形，一名衣著考究的神秘男子追蹤到了二人暫時棲身的小旅館，以類似的手法殘忍殺害了那名女子，湯米則在此之后下落不明。與此同時，神秘男子投入大筆金錢搶救了徘徊在死亡邊緣的面具人（Nick Principe 飾）。蘇醒后的面具人更加殘暴，在神秘男子的指示下，他將目標鎖定在時尚女孩杰絲（蜜米·麥克斯 Mimi Michaels 飾）的身上，一連串新的屠殺再次展開?！　×硪环矫妫匕附M持續關注近段時間發生的連環殺人案，湯米則成為案件突破的關鍵。新的屠殺，新的噩夢，在漫漫長夜顧自展開……