High quality entertainment. The lead actors are not only extremely good-looking; their acting is top-notch. Lee Min Ho is perfectly cast as the gorgeous, intelligent, somewhat naive, inadvertently funny, king. Kim Go Eun shines as a dedicated, no-nonsense, skeptical detective. I can watch these actors over and over because of the depth of their acting; their eyes and facial expressions pull me into their characters. The cinematography is breathtaking. The scene in the park when time stopped is a heart-melting treasure. The end of episode 4 was gripping, I was screaming. Not the kind of scream that cheap horror movies elicit, but the scream that a well-written, well-acted movie draws out. I have been re-watching the first 4 episodes several times to relieve my anticipation for the 5th one.