I use to check the synopsis of a drama before watching it just to make sure that the story is something I'm interested in.. First when i found that this is something abount multiple personality disorder, I wasn't interested to watch this.. But i was wrong.. This is one of the best k dramas ever.. I'm surprised with Ji Sung's acting skills.. Different personalities that are entirely different.. The gender, the dialect, looks, everything is unique for each personality and Ji Sung did his best in this drama.. Jung-eum did a grt job too..Certain expressions of her made me "LMAO"... She can handle both serious and comedy roles really well... OST is another grt thing abt this drama... The feel it gives can't be explained... In total it is a "must watch" drama... Missing it will be a grt loss for a kdrama lover... 10/10..Thank you 'Kill Me, Heal Me' team for giving us this wonderful drama... Grt job👍