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).

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 cop.

By investigating Yan's case, Ming hopes to get promoted and marry his inspector girlfriend Cheung Sz-Man (Sharon Chan) at the end.