圣诞将至,工程学的大学女生(艾米丽·勃朗特 Emily Blunt 饰)和同校东方哲学系的男生(阿史顿·霍尔莫斯 Ashton Holmes 饰)相约拼车返回家乡达拉维尔。他们的旅途遥远漫长,两人慢慢放弃最初的拘谨警觉,转而畅谈起来。这个有着芬兰血统的男生性格内向,且有些阴郁,虽然他视女孩为朋友,可是仍令对方心有惴惴。 天色渐渐暗淡下来,他们的汽车突然拐到一条偏僻的小路上,这让女孩颇为恐慌。行未多久,一辆轿车迎面驶来,在窄小湿滑的小路上,双方躲闪不及发生车祸,男生和女生被困在了原地。无边的黑暗最终降临,危险慢慢逼近,他们注定经历一个永生难忘的噩梦长夜……A couple of college students known only as the Girl and the Guy are traveling home to Delaware the day before Christmas Eve. They're on a frozen road that the Guy is convinced is a scenic short-cut. In the middle of nowhere in below freezing conditions they are run off the road by a hit and runner. They soon realize they're caught in a supernatural bubble where a crime from 1953 is doomed to repeat itself, year after year threatening new victims. The Guy attempts to walk back to the last petrol station but his wounds from the crash are worse than he let on.