Story: I finally made time to watch this drama and totally regretted that I did not watch it while it was airing! As a result, I ended up losing sleep to marathon this baby. This is a gem and certainly a much better product than Hyde, Jekyll and I - the drama staring Hyun Bin that was airing at the same time as this drama and with the same storyline on D.I.D. In fact, there are similarities in terms of the setting of this drama - rich younger generation chaebol guy with multiple personalities suffering from a childhood trauma which involves a girl whom they later fall in love with. But that is pretty much where the similarities end. As for the rest of the story - Kill Me, Heal Me trumps hands down! One nice guy with 7 personalities that you will find yourself liking. I had trouble saying goodbye to all of the personalities when it was time for them to go! Power struggle in a chaebol family. A family tragedy. Greed. Envy etc. It's all wrap up in KMHM with a good dose of comedy. The storyline also manages to bring out a range of emotions from the audience so much so that I found myself smiling, grinning, grimacing and crying. This is certainly something that HJ&I did not manage to achieve. For once, the higher rating of KMHM made sense! Acting: I loved Ji Sung in Protect the Boss and in HMKM, he brought my respect for him to a higher level! This is the script that even Hyun Bin, Lee Seung Gi and many big name actors rejected after reading it. I mean - who is crazy enough to pull through SEVEN different personalities - one of which a teenage female and one a young girl??? Well.. apparently Ji Sung was and he was rewarded for this gamble of a decision! Ji Sung shone through the entire drama. I do not know how the guy did it but he did it brilliantly! I also like that he was able to 'act with his eyes' from the doeful, kind look of Cha Do Hyun to the fierce, passionate and dead stare of Shin Se Gi. Another testament to his excellent acting skills! As for the female lead, Hwang Jung-eum, she's good and was well paired with Ji Sung. They had certainly proved that they can pull off a good on screen chemistry in 'Secret' and it is no surprise that the Ji Sung-Jungeum pairing worked again in HMKM. The rest of the cast were brilliant as well. So, despite being fraught with news of troubles in casting in the earlier part of its conception, HMKM turned out to be a great success with a cast that was perfect for it! Music: Love the opening and ending OSTs - modern and haunting. The lyrics were meaningful and somewhat sad and suited the drama well. Rewatch value: I have a confession - I fell in love with Shin Se Gi and I cannot get enough of Ahn Yo Na! They are the two personalities of Cha Do Hyun that I like the most! I have no qualms re-watching this drama just for these two characters. Overall: I give this drama 9/10. Why not a perfect 10? Well, although the story manage to evoke a range of emotions and drew the audience into the world of Cha Do Hyun, there are some factual errors here and there - they are minor and depending on the level of perfection you demand, they are not important enough to distract from the enjoyment of the drama. Hence, the -1 mark. Other than that, this is a brilliant drama and if you find yourself conflicted if you should go for Kill Me, Heal Me or Hyde, Jekyll and I....go for Kill Me, Heal Me. You will not regret it! Happy watching!