This was a very good show. Lee Jong Suk was good. He's a good crier and he is just so beautiful - easy to watch. Suzy did a much better job than she had in other things I've seen her in. I do have to say that the brother and the friend looked so much alike I always had to figure out who I was watching, which took me a little out of the story. It was an interesting premise and I liked how each episode tied up a small loose end, but kept the overall mystery intact. The music was PERFECT - created lots of tension. The ending was terrific. This is one of those shows that has some pretty good kissing scenes, and it is a drama that I go back to periodically.