根据同名小说改编而成，讲述两名女性和一个身份神秘的街头女孩相继被人杀害，在公众的舆论压力下，警署的老侦探展哥开始深入调查，捉拿凶手，展哥的侦探是刚从警校毕业新人任凯，双方在调查过程当中展哥碰见让自己妻子成为植物人 ，失去自己孩子的车祸女孩王桃，回忆起往事，令展哥陷入非常痛苦之中，无法自控。在夜幕降临之下，他们一路狂飙围追堵劫女孩，女孩心存愧疚抱着赎罪的心态，向展哥真诚的道歉，然后积极配合他们的调查，在各种调查过程当中遭受重拳暴打，又刻意的在调查中将王桃陷入歹徒的威胁之中，企图找到事情的真相，被仇恨蒙蔽双眼的展哥一发不可收拾，然而新人的任凯却发生失枪的情况，误以为凶手获得，却没想到凶手早已埋藏在城市之中，各种危机接踵而来

Adapted from the novel of the same name, it tells the story of two women and a street girl with a mysterious identity being killed one after another. Zhan Ge, an old detective from the Department of Public Security, began an in-depth investigation to catch the murderer. Zhan Ge's detective was Ren Kai, a newcomer who had just graduated from the police academy. During the investigation, Zhan Ge met Wang Tao, a girl in a car accident who made his wife a vegetative state and lost his child. Recalling the past, Brother Zhan fell into great pain and couldn't control himself. As night fell, they chased and robbed the girl all the way. The girl sincerely apologized to Brother Zhan with guilt and atonement, and then actively cooperated with their investigation. During the investigation, he deliberately put Wang Tao into the threat of gangsters, trying to find out the truth of the matter. Brother Zhan, who was blinded by hatred, was out of control. However, Ren Kai, a newcomer, lost his gun and mistakenly thought that the murderer got , but did not expect that the murderer had already been buried in the city, and various crises followed one after another