The actors were amazing! I was particularly impressed by Cha Eunwoo. I didn't know he could handle intense roles like that.

The writing though, whew... To say that this show abused flashbacks is an understatement. Every episode starts with a recap, so what's the point of giving me multiple flashbacks? And there are too many empty scenes (camera panning across the room, actors staring out into the void, etc). I've skipped so many of these, some of them take up a full minute or two, and I didn't miss anything of value. The story isn't even bad at all, it was just the way it was written. Too many plot holes, red herrings, out of character decisions, etc.

There's also too much crying. I get it, it's justified and realistic, but after the 10th crying session it just lost all its impact. I skipped those, too.

Overall this show is way too soapy and could have been reduced to 8-10 episodes. Fantastic actors though!