Teresa Mak joined the Hong Kong police in order to catch the criminal who killed her sister
| Actor | Role |
|---|---|
 Teresa Mak Ka-KeiMak Ling | Mak Ling |
 Wong HeiWong Wai Tin | Wong Wai Tin |
 Pinky Cheung Man-ChiKammy Ching Ka Mei | Kammy Ching Ka Mei |
 Jade Leung TsangMadam Cheung Ching | Madam Cheung Ching |
 Lam SuetLam Kwok Keung | Lam Kwok Keung |
 Candy Chiu Ching-YeeMak Ling's sister | Mak Ling's sister |