So, after spending the last 2 months watching it I'm finally ready to write my very first review. Beforehand I would like to ask for forgiveness if I make some mistakes. Story: When I started to watch it, there was something like 4 episodes outs.. And I got hooked to it since it. Every episode is a catchy, and it looks likes the plot is coming more and more alive as the time pass [ I don't think you'll be bored in any episode! ] If you like mystery, drama, action with just a little bit of romance this is the drama for you. Acting/Cast: First of all, I must say that I really enjoyed the characters of this drama: they're really well built and realistic. Jung Kyung Ho did so good on it; he had such a hard job with such intense character. He shone during all the drama for me. Lee Jae Yoon character can piss you off sometimes, but I do think he did a great job too. The female cast of this show was good, but I must say that Kim Yoo Mi stole all the scenes. Music: I gave it a 10, because it's the first time that I become addicted with one OST. Rewatch Value: Definitely worth to rewatch it and if possible to maraton. Overall: You really should give this drama a opportunity. It's different from others dramas and more mature. You will not be wasting your time.