Story of a girl that destroys lives. She is evil, and what made her evil and not just a bad person, was that she used people she deemed as good. She targeted people that were caring and tried to live good lives. I wanted to feel sorry for her because she was given two horrible parents and she never recovers from their effect. The saddest part of this show was that she absolutely destroys the people that care about her. I was heartbroken for them. The performances were believable which was worse for me. These people were irredeemable. Kim You Jung (Baek Ah Jin) was great. Kim Young Dae (Yoon Jun Seo) and Kim Do Hoon (Kim Jae Ho) performances were award winning. I felt so sorry for their characters. Both deserved better. I would say the story was original and the players were consistent in their lunacy. This show left me sadder than I was when I started it. What a waste of lives. I am reluctant not to recommend because it was engaging but I will never rewatch it. The acting is wonderful but so much anguish. True to the K-drama formula, yes, someone dies (several) and you feel like living a little less at the end.