There is almost no way to describe this drama much less score it accurately. So starting from the top, there are key points of the story that were amazing but there were also some holes. I don't like to rewrite the summary but basically our main character Cha Do Hyun has split personalities. A total of 7 personalities in one body. He meets a Therapist whom he connects with (for multiple reasons) and she helps him through the discovery of the creation of his personalities. Many of the begging episodes are pretty good, with each personality almost getting their own episodes so you can get the know them. I did not like one thing about Shin Se Gi - while he is one of my favorites the tattoo is too much. Ahn Yo Na is my favorite personality of all. Hwang Jung Eum(Oh Ri Jin) is the lead female and I was not so impressed with her or her character or her acting. That is all I can say about her really. The acting of Ji Sung to pull off each of these characters is very impressive. For some of the personalities you can tell he has changed just by watching him. Ji Sung was the key to this drama getting as good of a rating as it did. He was spectacular. The story over all was good, but once again they tried to wrap it up all too quick. One key problem I had was the appearance of a new personalty at the end, and I wanted more of a back story on a few of the personalities mostly the twin's (I don't feel they were explained as much). The OST "Auditory Hallucinations" is one of my favorites right now and fits the drama perfectly. Overall if the drama had been a little more clean at the end I would have rated it higher.