The drama needed to move faster or take a different route or get shortened because after a very long build up and endless anticipation the delivery/payoff wasn't quite as impactful as I expected. Some later parts had too much running around, silence and a lack of communication. You can tell they were trying to stretch it. Considering the theme of the drama being dark/depressing/sad, the cinematography needed some adjustments. It needed slightly darker colors and saturation, lower brightness and contrast, and less exposure. Considering the theme, I also expected more violence. With all that being said, it's still a decent watch.