影片讲述两个朋友的攀岩冒险变成了一场可怕的噩梦。凯莉用DV镜头捕捉到她最好的朋友被谋杀的过程后，她成为了这群朋友的下一个目标，他们为了不惜一切代价销毁证据决定追杀凯莉。凯莉为了活下去必须开始了一场危险的攀登，她的生存本能受到了考验......一名被困在山上的登山者与站在她上方二十英尺高的悬垂岩架上的四名杀手搏斗。两个朋友之间的攀岩冒险变成了一场可怕的噩梦。凯利用镜头捕捉到了她最好的朋友被谋杀的画面后，她成为了一群关系密切的朋友的下一个目标，他们会不惜一切代价销毁证据和任何阻碍他们的人。出于对自身安全的绝望，她开始了一次危险的攀爬山崖的旅程，当她被困在距凶手仅 20 英尺的地方时，她的生存本能受到了考验。

　　Guy is an experienced British fighter pilot who is in command of Britain's first manned mission to space. He has trained for this for three years at the height of the Cold War and now he is alone in space with a malfunctioning capsule. He has limited contact with the UK, some unusual communication with the US and some unorthodox communication with Tyuratam deep in Soviet Russia. Who will help him? Will he make the right choice?