An outstanding movie which follows a son-father relationship which is a very infamous story in Korean's history. The ending isn't a surprise because it's a movie where you go knowing the heartbreaking truth, which is explained by a serie of flashbacks where we see Sado prince since he was little and how the relationship with his father keeps deteriorating with time. We have a proud father and a son who isn't "mad". The main question who as a viewer you're going to wonder is how can be a son that horrible to try to kill his father or how can be a dad that cruel to kill his son but when you finish the movie you'll realise that there isn't bad guys or good guys. Last year was Yoo Ah In's year with two great movies which are veteran and the throne, I can't even rate the acting for this movie he did a great job not portraying a simple character instead showing us a complex human which isn't one dimensional. Of course we can't forget Song Kang Ho who is spectacular as always and let us see more than a simple king, it's a great portrayal of a person who is king and dad at the same time. I don't forget the supporting cast and special mention to Moon Geun Young who returns after 9 years to the big screen. Music it's a haunting song who I keep hearing after watching this workf of art (actually it isn't a song but you'll understand it after watching the movie). This isn't a movie that I would rewatch once in a while because it really punchs you in the face. If you like Yoo Ah In or you're interested in korean history and you want a masterpiece this movie is a MUST WATCH.