well, it's a good drama. the storyline is good, a prisoner who can't remember his crime, did he really committed the crime or is he innocent? very good, i was curious and excited to see how the story unfold. but, I'm really struggling with the pace. It was soooo draggy. I was waiting for who did the crime, how, why and the prison break that they showed early of the series, but it took at least half to be there. The feeling of suspense just woosh went away, like the suspense wasn't build up. But other than that, the drama if good. The acting was amaaazing, of course, expected from Jisung and other casts did great too. So it was good. but i recommend to watch it the storyline was good, it just the pace that i hate.