Various distinguished members of Hong Kong high society were being blackmailed by mysterious and attractive lady Chang Siu Juen, who seems to know the secrets of their past and present illegal activities. Millionaire Cheng Yung Seng knew that it would be his turn next. He thus planned to eliminate Chang first but the plan did not work out and Chang was saved by private detective Fang Dai Kuen...
Alan Tang
Tang Ching
Pan Yung-Sheng
Sombat Metanee
Meg Lam Kin-Ming
Nick Lam Wai-Kei
Chin Yuet-Sang
Che Dei
Peter Chan Lung
Billy Chan
Gam Tin-Chue
Aranya Namwong
Suthep Wibunnan