While time traveling is nothing new in the drama world, it can often be a tricky topic to deal with and deliver well. Nine, however, does a great job providing a well written story that incorporates a fresh take on time traveling. In this drama, our lead encounters a way to travel to the past. What is the catch though? There is a limited number of trips he can take, a set amount of time he can spend there and a precise time/location he can travel to - exactly 20 years ago at his current location. Despite a few predictable parts, there were enough twists and turns that kept me thoroughly entertained and wanting to watch on. This drama does an excellent job in illustrating the effects of time traveling. I really enjoyed the parallelism in time and the use of the split screens to demonstrate how just one change in the past continuously springs new actions from characters which ultimately changes the future. It was interesting to watch history rewriting itself into present time, day by day, second by second. Yes, as you probably have already heard or read about, this drama does have an open ending. But, I found it to be a well written one. I would explain more about why I like it but I don’t want to give away any unintentional spoilers so I will just leave it at that. I will say that the ending provides enough closure while leaving the rest up for viewers to decide on their own. While I don’t think the additional scene at the very end was necessary, it does spark more questions and forces you to think a bit more. I was unfamiliar with the cast prior to this drama but I did find myself enjoying Lee Jin Wook’s performance as our lead. As far as music goes, I didn't really notice it. Nothing was really memorable. Thus for me, it was neither good nor bad. In short, why watch Nine? -- It’s time traveling done right (or at least as close as can be).