It's been 3 days so I was thinking of the drama A Dream Within A Dream (ML has a second identity, also FL is frommthe real world and enters a fictional character's life so she also has 2 identities.)
Yes! that works. I couldn't think of any other than Alchemy of Souls or the Healer. I wanted to look for something better but it drifted my mind haha.
In the Mood for Love, there are several qipaos that are stricking throughout the film so it's hard to pick. But I like this one the most, it's contrasting to the background; stands out. Maggie Cheung pulls it off well.