在妻子莉（朱迪·汤普森 Jody Thompson 饰）去世一年后的圣诞节，年轻有为的医生泰伦斯·赛德（艾瑞克·麦柯马克 Eric McCormack 饰）驱车带着女儿辛希娅（科娜·德维利 Conner Dwelly 饰）和儿子杰克（瑞恩·格莱瑟姆 Ryan Grantham 饰）前往位于某个山林腹地的小木屋共度佳节。一路上车马劳顿，加上半路突发的一个小车祸，这些都没有冲淡孩子们心中对快乐的期待。夜幕降临，辛希娅和杰克，沉沉睡去，泰伦斯物资怀念着妻子生前的种种，可就在此时，一张恐怖的面孔从窗口一闪而过。 在此之后，赛德父子三人时不时会发现奇怪的影像与痕迹，似乎有某种神秘而未知的东西逡巡在他们的周围。在这个大雪纷飞、信号全无的孤寂所在，最恐怖的经历渐次展开……

After several years apart, old friends Nina and Michael reunite in Germany, accompanied by Michael's associate, David. The three decide to take a weekend trip into the woods to escape the stress of their lives and relax for a few days. Unfortunately, the woods are inhabited by a long-forgotten family of cannibalistic mountain people - and these three look like the perfect meal.