花樣年華 In the Mood for Love
Hong Kong, 1962. Chow Mo-Wan moves into a new room with his wife. The same day Su Li-Zhen moves in next door with her husband. Chow and Su discover that their respective spouses are having an affair. Chow, feeling hurt and wishing to understand how the affair happened, begins finding excuses to spend time with Su. Su's emotional reticence begins to haunt Chow and he finds his feelings changing. It's almost like being in love.