在这部孤身一人惊悚片中,麦琪和也的丈夫孤独地生活在Los Angeles，她的丈夫，本，是一个老师，但是很少给她安慰，两人行同陌路。他们有一对好朋友，凯尔和阿莱克斯，有次邀请他们一起去参加野营。其实本和阿来莱克斯有了长达8个月的奸情了，想通过这次机会把凯尔给干掉。
终于他们实现了，但是这一幕被一个自称环保主义者看到了，于是 环保主义者把真实情况告诉了麦琪他的丈夫杀死了凯尔。随后麦琪被两人追杀。。
An over-populated, concrete-filled Los Angeles drives Maggie into fear and isolation. On the edge, her cries for change are neglected by her husband Ben. When she turns to her dysfunctional but affluent friends, Alex and Kyle, they propose an overnight camping trip to get away from the confines of the city and escape to the solitude of the mountains. Deep in the mountains, they encounter a self-proclaimed radical environmentalist, Birch. Although worlds apart, she and Maggie have an undeniable chemistry, encouraging Maggie to find her inner strength. New information sends the foursome on a journey where masks are ripped away and secrets are revealed. Accusations lead to violence, and desperation fuels an irreversible chain of events. Survival is uncertain...
[FROM IMDB]really bad screenplay。
