Absolutely one of the best Kdramas out there. Literally don't have enough words to describe the amazing plot, the unexpected twists and exceptional acting by all the cast members, especially Ji Sung(after watching this drama he has become my most favorite korean actor...).
First of all, the plot of this drama is very unique. Though it was my first show about DID, I am impressed by the detailed description portrayed by the actors and the writers too. Moreover I was astounded how Ji sung acted out all the 7 personalities in the same drama, it was like I was watching different people. He is really an exceptional actor.
I would really like to thank all the actors, writer, director and everyone related to this show for creating this masterpiece....