Ah Ying (Chen Ping) is a former gangster trying to lead an honest life, and occasionally using her fighting skills to help out the girls in the factory where she now works. She befriends young colleagues Chong Lee and Shao Yin-Yin, teaching them self defence because "girls can't be weak anymore". Trouble starts when her old gang finds out where she now works.
Chen Ping
as Fung Ying
Wang Chung
as Ah Wai
Susan Shaw Yam-Yam
as Sai Chu
Chen Kuan-Tai
as Shing
Chong Lee
as Ah Fong
Wang Hsieh
as Dai Gi-Luk
Queenie Kong Hoh-Yan
as Ah Shan
Kong Oh-Oi
as Ah Ping
Ku Kuan-Chung
as Henry Chiu
Yang Chi-Ching
as Boss Wong