NGAI is the head of a drug syndicate who has a son KWONG SANG and an adopted son CHUN. CHUN is a brilliant young man while KWONG SANG is a crook who has always been jealous of GM',s ability. In .a deal, NGAI and KWONG SANG get caught and CHUN takes over all the business. SUNG is the crown prosecutor against NGAI who has an adopted daughter - SHUN WAH. SHUN WAH loves his sister SHE VUN very much who is adopted and raised by a couple.

SHUN WAH's boyfriend HOW MAN works in HOK NIN's provisions company. HOK NIN's daughter, HELEN wants to take him away from SHUN WAH. She makes here father offer HOW MAN a bursary to study abroad so that they can get together. Without knowing the details, SHUN WAH is glad and encourages HOW MAN by promising to look after his old mother. In jail, NGAI regret for his deeds and instruct CHUN to wind up his drug syndicate. After several years, CHUN establishes himself in entertainment business. By then, SHUN WAH also graduates with a law degree and works in her foster-mother's office.

Upon return from abroad, HOW MAN and SHUN WAH's relationship is not as intimate as before. HELEN's brother WILSON gets into trouble concerning the death of a show-girl. HOK NIN and WILSON return to SUNG for help but in vain. HELEN urges HOW MAN to marry her but HOW MAN feels that he still loves SHUN WAH. Despite her father's disapproval, HELEN goes on to reveal to SHUN WAH her relationship with HOW MAN and that he has his child.

SUNG also had bitter experience with man thus suggests SHUN WAH to devote her energy in work. CHUN does not allow his men to get involved in drugs anymore but HUNG disobeys him. Whilst chasing after HUNG, CHUN is caught red-handed and charged for possession of drug. He knows that he has been trapped. In fact the whole plot is designed by CHIC, an inspector of the police who believes CHLN has been deeply involved in the business thus is doing whatever possible to get him in jail.

In the case against CHUN, SUNG is the prosecutor and SHUN WAH is her assistant. Having learned that HOW MAN is to marry HELEN on the same day as her sister SHE'YUN to marry WILSON, SHUN WAH is emotionally unstable and commits a serious mistake which leads to MN's discharge.