Ha! I think the Sleuth is more the girlfriend character in this scenario.

It's quite a good show, but as with other Chinese dramas I've watched, it takes me two viewings to get to know the large cast of characters, all with multiple names, and figure out what they're up to in the long, complex, multi-plot.

Sleuth, in addition, features an inordinate amount of cross-dressing, so the reliable markers of costume go out the window. It's a lot of fun.