This drama is a fist in your face. There is nothing comparable here with korean dramas. Filming quality, playing quality, situations, showed feelings... I never seen in that way before in a drama. A complex story (i guess they written the whole synopsis before start filming), deep, sad. The characters' psychology is really well done. The actors match pretty well their roles, and they play really well. Mention to Lee Jun Ki. I thaught he was nothing but a "cute face", but bloody hell, he sweats, he bleeds, he screams, he cries, he laughes, and you're with him, you feel what he shows. I spent the 16 episodes with a node in my stomach. There is no timeout, no unnecessary rebounds, no flashbacks of what you watched 5 minutes ago, no easy feelings. Really a masterpiece,