Mok Ka-lun

In protecting a group of children from bullying and gang violence, the gallant 'Lady Bond' Kong Yin stays with the family of driver Lee Pak in order to give classes in self-defence to Pak's younger brother Calf and neighbours Tak, Ah-ling as well as the young woman Sheung, drilling them in the moves and techniques. Startled by her striking resemblance to his kidnapped girlfriend Tong Ching-yee, Tse Tsi-ming pleads with and convinces Kong to pose as the missing girl to visit her bedridden grandfather Chung-sau. The masterminds behind the abduction, Tong's stepmother and her nephew Chan Chi-biu capture also Tse and the children. Tse brilliantly manages to alert Kong. Fighting and apprehending her opponents, Kong frees the hostages and hands the criminals over to the authorities.

The blind Yip Man-chiu was abandoned at birth. Following the death of his foster parents, the boy is sold by his uncle Ah Sam to a blind Taoist priest, an abusive man. Running away from home, Yip is hit by a car and sent to a school for the blind by the social security workers. His talents impress the musician Siu Kwong and wins him a place in a music school for the blind. There he is joined by fellow students Lung Kwok-kei, a runaway child with an abusive stepmother, Chow Kuen, an abandoned child found on a train, and Cheung Kin-ching, an avid music lover sent to the school by her loving well-to-do father. The four children blossom into accomplished musicians under the tutelage of Siu and his wife and together with the less fortunate others, form an orchestra which earns a reputation for excellence.