Yun Seo, has been living without any dreams and love for a long time. One day, Tae In comes to her life and she falls for him. But when Tae In’s pregnant ex-girlfriend, Seung Hui appeared to them. All her happiness shatters and she begins to be obsessed to Tae In. Her anxiety makes her to kill Seung Hui, and her frustration drags Yun Seo to bloody end.