A young newlywed couple find themselves trapped in a network of underground caves. With her husband injured, the new bride is forced to find her way back to the surface in order to save his life. In the process, they discover a terrifying truth about the "underneath", they are not alone. Something evil is hunting them.。女护士热爱城市文化,为逃离日常烦忧,每周末远赴首尔看电影;男导演厌倦都会繁华,总爱到江陵享受海边小镇的悠闲风光。经常往返两地的陌生男女,终于决定一到周末就交换公寓。 春去秋来,两名异乡人总在相同的咖啡店和美食地图里错身而过,原来,他们早就渗入彼此的生命中;爱情,只差一句浪漫告白……全片以巧妙的空间配置对照两人,诉说看似迥异的灵魂,或许根本注定契合。。