Overview
Two mismatched Hong Kong police detectives, Yau and Yue, were assigned to work undercover as a live-in couple to track down a serial killer accused of murdering adulterers. In the meantime, Yau (Anthony Chan) is coping with his girlfriend having left him, and Yue (Sandra Ng) is losing her boyfriend to a college girlfriend of his.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 26 | 60 | |
 | 39 | 72 | |
 | 28 | 61 | |
 | 35 | 68 | |
 | 35 | 69 | |
 | 31 | 64 | |
 | 60 | 93 | |
 | 60 | 94 | |
 | 57 | April 27, 2022 (87) | |
 | 36 | 70 |