Definitely one of the best dramas I ever watched. Truly remarkable and captivating story, the acting skills are top notch. Lee Joon Gi was incredible in this, but so was the main villian, main lead and other characters, including the one acting as his daughter, deserves a lot of praise. Worth your time, trust me. This is that kind of drama that you will not get tired of, even after rewatching more than one times. You will not regret watching this amazing drama, that will keep you on edge and capture your heart. Must watch!