Despite all the reviews already existing for this highly popular drama, I wanted to write my own, as I was so disappointed by it.

STORY
The inconsistent and illogical writing is what ruined the drama for me: it almost feels like completely different people wrote the first half and the second half, and that the second writer had no idea how the first writer wrote the first part. So many elements in the story seemed unnecessary and many didn't fit well together in the story. The concept of the drama was great (a man with DID) but the writing simply wasn't good enough to make it into a good story.

Also, I personally find it really annoying when mental illnesses are turned into something almost supernatural (aka however the writer wants it, even if it's inaccurate): it's a topic that is already interesting as it is, and the need to add fantasy-like elements (those frickin' fake red tattoos for example) just shows how badly it was written. It's almost offensive to Ji Sung: his acting was perfect enough for the audience to notice the change of personality, and the CGI effects were useless and simply made me cringe.
There are actual real people suffering from DID in this world, and this element itself would have been enough for the story to be interesting. The medical inaccuracy was painful to watch, in my opinion (I know, it's just a drama, but I just couldn't let it go).

CAST
That being said, Ji Sung gave probably one of the best performance I've seen in a drama. He portrayed all of the personalities perfectly and brought hilarious comedy to the show. That's pretty much the only thing I liked about this drama and had to skip lots of the scenes to finish it.

MUSIC
The OST is great, although that one really good song is a bit overused and I started getting tired of it halfway through the show.

REWATCH
I won't watch this drama again. It has some great elements, but it's really overated in my opinion.