故事发生在一座名为贝斯厄尔城的虚构的城市之中，和这座城市相对的，是厄尔科马城这两座城市的人被规定禁止相互产生联系，他们要对彼此视而不见，假装对方完全就不存在，企图跨越界限的行为被视为是不可打破的禁忌。一天，一名就读于厄尔科马城大学的女学生的尸体被发现横陈在贝斯厄尔城的街头，贝斯厄尔城极端暴力案件调查组的泰亚德警探（大卫·莫瑞瑟 David Morrissey 饰）负责调查此案，结果被卷入了两座城市...
"O" is a talented photographer in her late twenties with a promising career ahead of her. She is torn, however, between the tasks financial realities are forcing upon her and between her own...