If u like murder mysteries n stuff, then this is the drama for you, I loved it from the beginning to end. No dragging, it keeps you on your toes all the time! 2 detectives from different times communicate through a walkie talkie to solve unsolved crimes of Korea. For me this drama was mysterious and interesting. But the end, is it really the end? It is as if you have watched something only half.. the ending leaves you waiting for more!