An amateur camper stumbles across a kidnapping gone wrong, a jailhouse rendezvous, a double-cross, or a revenge plot, depending on which desperate character is misinterpreting the story - a puzzle thrill-ride told with n…

　在与老朋友大卫（欧玛·艾普斯饰）短暂相遇后，艾莉（尼娅·朗饰）试图挽救她与丈夫马库斯（斯蒂芬·毕晓普饰）的婚姻，却发现大卫比她想象中更加危险和不稳定。