In order to rescue her best friend COCO KAM (Lau Yuk Chui), masseuse CHENG SIU-YAN (Flora Chan) is embroiled in a triad murder case. Misconceiving that she has killed someone, YAN hides away from the police and gangsters by reluctantly returning to her long-separated father CHENG TSUN-CHEONG (Shek Sau). CHEONG opens a Chinese herbal tea shop but the business is failing. YAN drags through the days stressfully until NG CHUNG-MING (Ma Tak Chung) comes into her life. MING claims to have a secret prescription for making Chinese herbal tea but he is actually an undercover police. By investigating YAN's case, MING hopes to get promoted and marry his inspector girlfriend CHEUNG SZ-MAN (Sharon Chan) at the end. MING's supervisor CHEUNG SZ-CHAI (Chan Kwok Bong) used to oppress him a lot and MING is losing confidence at work. However, ever since he meets the cheerful YAN, MING begins to develop his self-esteem and find his life path. His delicate relationship with YAN also starts to grow. MING's younger brother NG CHUNG-HONG (Law Chung Him) meets YAN's younger sister CHENG SIU-MAN (Mandy Wong) and love grows spontaneously. However, YAN finds out MING's identity and she believes that the two brothers are making use of them to carry out investigation. On the other hand, MING learns that YAN's cousin LEUNG KING-HO (Yuen Shiu Cheung) is just released from jail and he is familiar with the gang leader, and YAN is considered in connection with the case. Their blossoming relationship is thrown into turmoil as they get closer to the truth.