This drama has very good actors and the plot is thrilling until the end. There's murder, grief, anger, sadness and a little bit of romance that never breaks the thrill of the story. The female lead is a strong but sweet woman who works in the police and the character is well developed. Also the romance between the main couple doesn't take the stage so you can fully enjoy the chase and follow the investigation to catch the murderer. There's only one thing that in my opinion is not well developed and that's the trust that grows between the male lead and the other main characters. Nevertheless you have a gorgeous Ok Taekyeon who you don't know if he's evil or good. Totally recommended.