Like every year, Jim, Ray, Brad and Paul leave the town for a week to go hunting in the woods. But this year everything is different: There's not a single animal to be found, the whole forest has fallen quiet. Two female campers they meet have mysteriously disappeared the next day, leaving their whole equipment behind. And then they start to behave weird themselves... An alien power is using them for cruel psychological experiments.

Like every year, Jim, Ray, Brad and Paul leave the town for a week to go hunting in the woods. But this year everything is different: There's not a single animal to be found, the whole forest has fallen quiet. Two female campers they meet have mysteriously disappeared the next day, leaving their whole equipment behind. And then they start to behave weird themselves... An alien ...

整部电影发生在一个夜晚：一位在仓库值夜班的保安陷入了自己的过去。三个陌生人在同一天晚上闯入仓库。但他们究竟出于什么原因，又与保安有何关联？最终，他们都必须穿过走廊。