At first, I expect that this series will be like the others that I already watch but the more episodes you watched, the more interesting it gets. I mean solving the puzzle is really amusing specially the real identity of the culprit. There's so many twists in this story and you will not understand the whole story until you reached the final episode. Of how they were all connected and the puzzle will be solved. It amaze me that it was really a great story.

I am really fond of how aggressive Dong Baek is, and he actually fits to be a cop because in Remember, I watched him as a lawyer. He is really a good actor and also Han Sun Mi. They make a great combination ever.