Industrialist Tam Kar-cheung knowingly puts the lives of his workers at risk so as to line his pocket with insurance payments. The chivalrous Bus Money gets into fisticuffs with Tam's chauffeur, Tam Biu, who bears a grudge against the assailant. When Money catches wind of Kar-cheung's vicious plot to set fire to a squatter area to clear the path for a property development project, she moves in and watches vigilantly for signs of arson. Soon, she saves Ah-hau, Biu's girlfriend and a young victim ...