When a boy goes missing from a new factory and the factory manager, Cheng Yong, refuses to provide surveillance, the boy's family exposes the incident and Cheng Yong is trolled by public opinion. Cheng Yong is said to want to annex the old factory, which is separated from the new one by a wall, and the gatekeeper of the old factory, who is blocking the annexation, is the grandfather of the missing boy. Public opinion rages and festers, and as a result, his son gets into a fight with a classmate and promptly disappears. A mysterious woman comes to Cheng Yong's aid and turns the tide of public opinion in his favor. Ching Yung goes to ask for an explanation, but the gatekeeper falls to his death from a height, did Ching Yung kill the gatekeeper? He is caught in the whirlpool of public opinion again. Cheng Yong flees. On the other hand, downstream of the dirty river, a body slowly surfaced, the rabble saw this and waved their sleeves away, the truth is hidden in the dirty river. ......