在隐蔽的缦城角落，利欲熏心的贩毒集团不择手段，致使无数人因沾染毒品而家庭破碎、坠落深渊。被毒贩迫害至家破人亡的张耀（张家辉 饰）为复仇，与缉毒队长安渡（阮经天 饰）暗中合作，二人联手做局狠辣除害，誓要将犯罪集团的榜一榜二大哥穆坤和安佩全部铲除。然而没想到在这背后竟藏着一场精心布置的复仇棋局，是同仇敌忾还是各怀鬼胎？在这场较量中，到底谁才是执棋人，谁又是被操作的棋子？当危机悄然而至，是沉沦还是警醒，一切请小心为上……

In a secluded corner of Mancheng City, a ruthless drug trafficking group stops at nothing to achieve their goals, leading to countless individuals falling into the abyss of shattered families due to drug addiction. Zhang Yao (Nick Cheung Ka Fai), who has been persecuted by drug traffickers to the point of losing everything, seeks revenge. He secretly collaborates with Captain An Du (Ethan Juan) of the anti-drug squad to set up a ruthless trap to eliminate the top bosses of the criminal syndicate. However, behind this plan lies a carefully orchestrated game of revenge. Do they have the same enemy or do they each have their own hidden agendas?

In this showdown, who is truly in control, and who is merely a pawn being manipulated? As the crisis looms, will they sink or awaken to reality?

Proceed with caution as everything unfolds…