Two best friends and roommates are terrified by the vengeful spirits dwelling in their apartment. Based on the novel published by Kobunsha and written by Kamon Nanami.

在欧洲乡间的秘密研究室里, 一位顶尖的科学家正对着两只巨蟒进行实验测试. 当资助者(约翰莱斯戴维斯饰) 企图干预实验时, 饥饿的蟒蛇逃出了研究室. 汉密特(戴维赫索霍夫饰) 受雇追捕牠们, 其任务是必须在蟒蛇窜逃到城市且在灾难扩大以前, 实时捉拿这多产又极度致命的生物……

Looking for work, Aaron comes across a cryptic online ad “$1,000 for the day. Filming service. Discretion is appreciated.” Low on cash and full of naiveté, he decides to go for it. He drives to a cabin in a remote mountain town, where he meets Josef, his cinematic subject for the day. Josef is sincere and the project seems heartfelt, so Aaron begins to film. But as the day goes on, it becomes clear that Josef is not who he says, and his intentions are not at all pure.

翠施（吉娜·菲利普斯 Gina Philips 饰）与戴利（贾斯汀·朗 Justin Long 饰）姐弟俩正驾车行驶在乡村公路上返家度假，无聊的二人彼此唇枪舌剑解闷，突然，一辆老旧肮脏的货车试图超车，令二人紧张一场。不久他们看到从货车上下来的人在路边小屋前，将一包带着血迹的东西丢入了一个管道，姐弟二人好奇心大起，不顾刚才被货车追逐的经历，悄悄返回小屋查看。戴利落入管道，发现包裹中居然是腹中被缝入了不明物体的活人，大惊失色的戴利与翠施迅速驾车离开，但一个长着翅膀的鬼影开始一路追踪他们。姐弟俩向路上遇到的各种人求助，这却使这场噩梦般的经历变得更加骇人……

故事围绕由伊丽莎白·莫斯(《广告狂人》)和凯瑟琳·沃特斯顿(《性本恶》)饰演的一对闺蜜展开凯瑟琳接连遭受打击，情感接近崩溃。为了散心，她来到一所与世隔绝的湖边住所，这是她最好的闺蜜弗吉尼亚的房子。然而在这里她也找不到平静。一连串的事件让凯瑟琳与弗吉尼亚的关系出现裂痕，直到无可挽回的地步。