I don't mean that the show is emotionally dark, I do mean that there is hardly any lighting! That's my pet peeve about this show - probably 40% of it happens in the dark and the sets are underlit. It's hard to make out what's happening unless you watch in a dark room. If you're someone who has a home theatre, good for you! I had to put my laptop in a box to make out what was happening.

The plot twists and turns so quickly that you really have to pay attention. However it's really hard to do so when the sets are so dark and difficult to make out what's happening. The director must like using 'natural' lighting like moonlight to illuminate the faces. Frankly, everyone looks the same when you can only see their silhouette or side profile. In the end, I had to catch up by relying on recaps to 'illuminate' the plot twists and turns.

Aside from that, everything else about the show was great - the pacing and particularly the acting by all the main and supporting actors was phenomenal . Hence I had downgraded my original rating of 8.5 to 9 that I rated when I started the show because of this. I know the director is trying to create a certain dark, dreary and 'doubtful' mood but it's frustrating.