I cannot believe how they ruined such a good cast and potential plot. The first ten episodes were exciting and really made me think "wow this could be one of my favorite dramas of the year", but no. It goes downhill to the point you have no idea what they are trying to prove or show. Unless you enjoy a psychotic guy falling in love with a girl with no values or even common sense, then do not torture yourself mentally by watching this. At the beginning of the drama I was one of those people who defended the female lead despite her playing two guys because I thought she was gonna grow and change. How could you make a vow to your fiancé that you will always love and be with him even in another lifetime and go love the person that stabbed him to death?? Not only that she made him look like a fool for saving her and loving her unconditionally; she acts like a block of ice and runs to the psychotic guy hugging him and talking to him like he's some type of angel. What is the point of this drama? To show that eternal love doesn't exist? To show that stalking someone and murdering is okay? To show that the "bad guy" can get the girl? WTH like I don't even know how someone approved this drama to be filmed after reading the script. I also don't know why the actors especially Lee Soo Hyuk would want to participate in such chaos and nonsense. I finally understand why this drama received very low ratings in Korea and now even on MDL. For your own good and sanity do not watch this drama.