唐永强一家住在新界，虽然太太有工作，但唐永强却失业，家里没有收入，靠领取综援维生。两夫妇的关系逐渐转淡，太太更是红杏出墙，唐一怒之下竟出手打妻子，妻子更离开唐跟情夫出走了。两名女社工在跟进唐这个问题家庭的个案时，竟发现唐正胁持着子女在家中，要求跟妻子见面。最后竟引爆石油气，警方在现场搜证和落口供，竟发现了近日两案女童失踪案事主的尸体，众人都毛骨悚然……

It tells that Tang Yongqiang lives with his wife and children in a village house in the New Territories. Although his wife has a job, Tang Yongqiang is unemployed and has no income. He lives on CSSA. The relationship between the two couples gradually faded, and his wife even went out of the wall. Tang Yi was angry and beat his wife. The wife left Tang and ran away with her lover. When two female social workers followed up the case of Tang’s troubled family, they discovered that Tang Zheng was holding their children at home and demanding to meet with his wife. In the end, LPG was detonated. The police searched evidence and gave confessions at the scene, and discovered the bodies of the victims of the missing girls in two recent cases. Everyone was terrified.