This has got to be the most well scripted and well-acted drama I have ever seen. Ji Sung, in particular, did a fantastic job with playing several different personalities. He was just constantly spot on in his acting. Kill Me, Heal Me has made it to my top favorite list. It had a great combination of comedy and tragedy that I find entertaining. And I loved all of the characters. Even characters I hated because they were villainous, I also sympathized with. That is what really makes a good villain. Fantastic drama with a pretty much flawless storyline. A must watch for everyone interested in being entertained.