Takeda (Shun Sugata) is an honest police officer, father and husband, but after he's promoted to detective he quickly becomes embroiled in dirty back room dealings, blackmail, and corruption that goes right to the top of the force. Meanwhile renegade investigator Kusama (Junichi Kawamoto) must decide whether he should shake the foundations of Japanese law enforcement with the information that has come into his possession about the police. What will happen if both these men listen to their consciences? 你们都懂得。 警察局分属的巡查竹田八生外号“竹八”，他为人正直，深得普通百姓和上司的信任。竹八受课长三枝赏识被升职为刑事，与此同时女儿也降生于世，竹八感到自己的人生一片光明。然而竹八并没有察觉，他和后辈山崎老老实实地执行三枝的命令，已在不知不觉间涉入了犯罪的泥沼。
