This series was probably 3 episodes too long. The first six/seven episodes flowed nicely, and I felt, were engaging. I felt episodes 8 and 9 were just efforts to extend the story. Still entertaining, but, much less so than the previous episodes. Then you had the last episode...Lord...As others have remarked, the last episode made no sense. I just finished watching it and I am totally confused. The story up until the end was original. As with most Korean movies/series, the acting was great. I deducted stars from my rating for the above reasons. Just go in knowing you will be shaking your head at the ending.