一天上午,有人坠楼摔死在一辆货车上。负责查询拜访的警探博登(克里斯·梅西纳 Chris Messina 饰)来到现场后发明第一现场并不在货车停靠的职位,而是在不远处的一栋大厦。与此同时,这栋大厦的一处电梯忽然故障,悬停在20层附近,电梯中的三男两女被困。大厦保安派往的维修人 员也未能解决故障。封锁的电梯里,五人因延续被困而情感烦躁并辩说…
After an earthquake leaves Danny trapped and alone, his claustrophobic nightmare only gets worse when something truly horrifying emerges from the fissures in the ground, forcing him to engage in a brutal fight for his life and his sanity.