In The Mood For Love (2000)

Romantic melodrama set in the Shanghai community of Hong Kong in 1962. Newspaper editor Chow (Leung Chiu-Wai) and his wife have just moved into a new apartment across the hall from Li-zhen (Cheung) and her husband. Both their respective spouses are away from home a great deal, traveling on business, so the lonely duo begin a tentative friendship. Then Chow begins to suspect his wife is having an affair and it quickly becomes apparent that it's with Li-zhen's husband. Gorgeous to look at, melancholy in tone, if somewhat oblique. Chinese with subtitles.