I have never written a drama review and never thought that I need to. But this drama is an exception. I almost gave up on episode 3 as I can't bear the thought of a murderer becoming a detective, but I didn't. The plot is really good. I have watched so many dramas related to criminals; thus, sometimes I can sort of guess the twist. But this drama wasn't the case. I am so glad that I found this drama. I even rewatch the last 2 episodes several times as I can't get enough of it. Takahashi Issei is a talented actor, but I was surprised at how good his acting in this drama, I am so in love with him.
PS: I know, the music is not that good, but I didn't really care as I was really into the story.