"There Is A Secret in My Soup" is based on infamous HK crime case called 'Hello Kitty Murder'.In 1999 three triad gangsters kidnapped,brutally tortured and beat a 23-year old woman named Fan Man-yee for one month until she died.Then they dismembered and cooked the body,threw most of it out with the trash,fed legs and arms to stray dogs and hid the skull inside the head of a giant-sized Hello Kitty doll.
| Actor | Role |
|---|---|
 Michael WongPolice officer | Police officer |
 Hugo Ng Doi-YungRocky Li | Rocky Li |
 Gabriel HarrisonJoe | Joe |
 Timothy Shaw Chun-YungFei | Fei |
 Cherry Chan Chiu-ChiuMaggie Chan | Maggie Chan |
 Angela Tong Ying-YingPat | Pat |
 Christy Cheung Wing-YinFei's girlfriend | Fei's girlfriend |
 CoCo Chow Ka-YuJoe's girlfriend | Joe's girlfriend |
| MMatthew Ng TingMaggie's husband | Maggie's husband |
 Chan Chung-WaiComplaining whore customer | Complaining whore customer |
 Benz Hui Siu-HungNot listed | Not listed |
 Keith Ng Shui-TingNot listed | Not listed |