A lot of piano playing, classical music and passionate love addiction. This drama is almost a masterpiece. Here are so many good comments and reviews on this drama. And I agree with almost all of them, but want to say something too. First of all, I avoided to watch this drama for last 2 years 'cause I thought that love between two of 40 yo and 20 yo will look awkward. But in fact was NOT awkward at all. Seeing the 40 yo woman who is still so beautiful, fresh, smart and attractive, I felt inspired and refreshed. I wanted to be like her when I'll be her age. She is tough and soft at the same time as well. She is not an ajumma with stoned and old mind. She is mature and strong but has young mind. Such a rare combination. Just loved her. That 20 yo boy admiring the woman... I felt his passionate love during all the drama. It is his passion that kept me in bitter-sweet tension so that I couldn't stand but kept watching the drama non-stop, tho my body&mind was naturally tired in the middle. This role really suits to Yoo Ah In. I agree with all praises to him written in the reviews. Btw I've watched an interwiew with him after, and his answers and comments were so deep and thoughtful, - which I never expecting from him, - that I started to respect and like him as a person pretty much. I felt alive for some time thanks to this drama. May be it wouldn't impress me so much if there were not the unique cinematography.All colors are darken so it looks like an art of movie. Seems like this color trick smoothens all flaws of acting and environment. My eyes were having rest from all that bright, light and colorful other dramas. It was great that there are alot of classical music, and they play piano a lot. This makes drama about music the drama about music. And the music is great and it shows their soul, their passion so well. Oh sometimes too well: when playing music feels and looks like sex or even better. Bad thing here for me is the business talks. I tried to scroll them as much as possible. Though this side of our main heroine's life is interesting. Just for me, it is shown boring. Half of supporting cast didn't seem good at acting. Only that's why I rate acting 8, not 10. I don't think I will want to rewatch it soon. The reason is... The drama is slow and it seems that almost nothing changes and all scenes just repeat and repeat but just in different shot and with slight changes to continue the story. That's why it feels like I've already rewatched the same thing many times )) Don't worry, all that repeatitive and similar scenes are so deep, beautifull, intense and passionate that it's rather enjoyable repeatition ))