Just finished this show, first I need to note that I watched the entire series with noise cancelling headphones and 10/10 would recommend, I LOVED the soundtrack and felt it completely enhanced my entire viewing of this series. The suspense scenes especially.

It is kind of a confusing show, but that's why I give it a higher rewatch value, I feel like it deserves 2 watches to grasp the story a lot better.

Now for the title of my review; I think that they could've cut out a lot of scenes/made a lot of scenes shorter (the space 39 scene especially) and it would've done well as a movie, albeit probably a little bit more confusing. But I also believe they could've fleshed everything out so much more to stretch it to a 12 if not 16 ep series as I'm left with so many (basic) questions about the main characters. The scar on Yun O's back? What his mom actually did to him? The accident that left Gi Eun in this state, and more about her past as an officer, how she met Mok-Won, more about Sum's parents & upbringing. I could go on and on.

Anyways, still think it's worth the watch and will hopefully rewatch it in the future!