故事发生在20世纪90年代初,曾经辉煌一时的中原飞机厂正显露笨重疲惫的姿态。在家属区大院居住的初中生曲靖(苏晓彤 饰),她的父亲曲志诚(郭笑 饰)是一个有些迂腐执拗的法医。曲法医虽然经常遭到妻子的奚落和周围人的嘲笑,却不改自己一根筋的办案作风。与之相对,曲法医的同事张树林(周逵 饰)作风粗犷,破案率极高,但难免出现屈打成招的情况。曲靖和张树林的女儿张雪(陆琦蔚 饰)交好,后者过于出挑张扬的作风让她遭到不少人的白眼。曲靖一次促狭的举动,使得张雪从所有人的面前凭空消失。而就在此之前,当地接连发生多起手段恶劣的强奸杀人案。 每个人都形迹可疑,每一处阴冷黑暗所在都隐藏着无限杀机……In the summer of 1991, a rape case broke the peace of a small town. The fathers of two girls in the local middle school were the policemen in charge of the case. Nevertheless, they had very different working styles: QU's father was a stubborn legal medical expert always insisting on ironclad evidence, while ZHANG's father, a retired soldier, handled cases relying on his intuition and often extorted confessions through torture. The supposed criminal was caught by ZHANG's father yet similar cases kept happening. Nobody noticed ZHANG's disappearance since she was kicked out of class.