I'm not at all surprised that this dorama was so popular when it was released, and let me tell you why. The plot is quite simple, a young rookie detective on his first day in the force finds out that his assigned partner is no one else that his father; who abandoned him many years ago (and apparently they haven't speak with each other in a long time). As a detective/investigation drama it fails horrendously. The cases make almost no sense at all, and when they do, they're very predictable. But the great thing about this dorama is that it doesn't take itself seriously; and as a comedy is a great success. Every case depicted is an excuse to see the fantastic interactions between father and son. Obviously none of them wants to admit that they really care for each other and having such different personalities there's a lot of humor involved. And speaking of humor, the rest of the detective division, "the team", although full of clichés, are hilarious. You have the chief, the girl, the nerd, the ladies man, and so on. The two protagonists make a fantastic job in their roles, and the rest of the cast is pretty good as well. Some people may find the "japanese acting" a bit over the top, but you'll get used to it in no time. In short, it's a great comedy with bits of thriller, (almost none) romance and (quite a few) sweet family/friendship moments that it's really worth your time. Also, the music is pretty tv standard but the main theme is terribly catchy! (I can't stop singing it my head :P)