Let me start by saying I basically only watched this because I am a huge fan of Seo In Guk, who is a fantastic actor - and he was of course great in this.
That being said this series was littered with problems. Also I should add that my experience was definitely marred by poor subtitles, and this is definitely something to consider since at the time of my review there are no better subtitles available - I searched everywhere, believe me!
The bad: The start is a bit slow, and it takes a few episodes for the tone to settle into a steady rhythm. The second half of the series was much better, especially once you know who Lee Hyun's brother is. Lee Joon Young is a character that I felt didn't get fleshed out enough, so a lot of his actions felt confusing and shallow.
The romance felt half-baked and really unnecessary to the show and I wish they had just left them as friends. As with a lot of Kdramas pre-2016, this show felt dated - it had a really bad soundtrack with annoying, repetitive songs that pulled the viewer out of the moment. The ending was awful, it left so many open ends, and had there been a second season perhaps that would have made me give a higher rating, but unfortunately the story was left unfinished.
The good: the acting was decent, especially between the two brothers. Also the brother story line was the best aspect of the show - they had some of the most intense scenes together and I loved every second of their relationship. I know I said the soundtrack was bad, but they did this eerie background sound during certain scenes that was amazing and brought the perfect creepy vibe to the show.
In the end, this was an okay show, but I feel like the only reason I enjoyed any of it was because I am a fan of Seo In Guk. So if you are a fan of one of the main actors I think you will enjoy this.
