Letterboxd
This was great cinema. Every scene has detail to read into. The camerawork and framing masterful. I distinctly remember one scene of just a glass of water and a lemon (I think) that I thought "This could be a water painting".
Acting was excellent. So much was communicated through the eyes rather than spoken word.
I'd say my biggest objection was how perfectly setup the trio was. Nora, her husband Arthur, and her childhood love Hae Sung were almost too contrived. Every one of them had an emotional core that made them perfectly balanced in the group dynamics. Nora was pragmatic and loyal, to the point of almost being cruel to Arthur. Arthur was neurotic and maybe a bit cowardly, but came through in his understanding of Nora. Hae Sung was romantic to the point of what could easily have been regarded as "creepy", but his actual feelings were so pure that it was honestly hard to regard them as such.
Anyway, my friend and I spent a solid 2 hours dinner afterwards mostly discussing particulars of the film. It is that level of cinema.