Detectives receive a anonymous letter asking for their help in solving the murder of the world's richest man.
| Actor | Role |
|---|---|
 Guo Tao卡乃吉 | 卡乃吉 |
 Cecilia Han琳琳 | 琳琳 |
 Patrick Tam孟少云 | 孟少云 |
 Lee Kin-YanNot listed | Not listed |
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Detectives receive a anonymous letter asking for their help in solving the murder of the world's richest man.
| Actor | Role |
|---|---|
| Guo Tao卡乃吉 | 卡乃吉 |
| Cecilia Han琳琳 | 琳琳 |
| Patrick Tam孟少云 | 孟少云 |
| Lee Kin-YanNot listed | Not listed |