Muto Takashi is a former police detective who uses illegal methods to solve cases which are difficult to handle by the police. Kaburagi Wataru is a police detective and Muto's buddy, and Tamaki takes charge of the special missions given to Muto. While exploring the lives of these men, the topic of whether revenge is right or wrong is discussed in this drama.

已人过中年的少年鉴别所法务技官夏目信人（椎名桔平 饰），在人生的平稳期突然转职，成为东池袋警署刑事课强行犯系的一名刑警。此举的肇因，或可追溯到十年之前降临在夏目一家的灾难之上。他和年龄相仿的福森诚一（松重丰 饰）、年龄比自己还小的前辈安达凉子（小野ゆり子 饰）统归系长菊池大雅（要润 饰）调派。东池袋区域娱乐事业兴盛，此地更成为黑白两道交汇、各种隐秘罪恶滋生的温床。弹丸之地，凶杀、抢劫、绑架等恶性事件接连发生，夏目一次次和同侪奔赴第一现场，追查真相的同时与躲在暗处的对手展开连番较量，而其命运也受到一连串事件的左右……
本片根据药丸岳的原作小说改编。

Nobuto Natsume worked at a youth detention center, but began working as a detective after the age of forty. He begins his new career as a detective in the violent crimes section at Higashi-Ikebukuro Police Station. He listens carefully to those involved in cases and investigates thoroughly to uncover the truth. Veteran Detective Seiichi Fukumori works as Nobuto Natsume's partner. The crimes they investigate usually relate to families. ~~ Based on the novel "Keiji no Manazashi" by Gaku Yakumaru.