I don't speak Korean so I had to watch this series with subtitles. I watched the entire series twice! This is the best drama that I have watch in all of 2018. The cinematography, sound, special effects, costumes, just about everything is absolutely stunning and left us mesmerized for the entire series. But most of all the acting by all the characters in the series are all top notch. The music also needs special mention. The pieces were perfectly matched to almost every scene. Sori by Lee Suhyun of AKMU was especially haunting and beautiful. There wasn't a dry eye in the room.
I started the series sort of half interested. I found the first episode to be somewhat disjointed and confusing. It turns out it was a necessary step to understanding the rest of the series. By the third episode we were all hooked not just by the superb acting of Kim Tae-ri and Lee Byung-hun but also Kim Kang-hoon who played Eugene as a child. And it only got better from there! This is definitely binge worthy.
Kudos to the director, cinematographer, sound editor, for a truly epic experience.