It tells that the world shown in this film is the inner world of patients with split personality, with desire on one side and obsession on the other, but it will eventually return to reality. In the whole movie, there are also a lot of suspense reasoning plots, which have laid a lot of foreshadowing and misleading traps in the whole process of the story. If you don't pay attention, you won't understand the whole story. You have to weigh it repeatedly to find the truth. This is a very troublesome thing, and it is precisely because this is not particularly easy to understand that the ratings of this film are not particularly high.

The heroine is a famous Korean actress, Suriel, who plays a private doctor in this play. The man is Kim Soo Hyun, and the villain is also jealous of him, resulting in a series of stories. The villain here can be said to be his second personality.