This drama is a masterpiece and it definitely deserves a rating of 15-plus alpha (hahaha!) I am someone who is more into rom-com genre than other genres, however this show just hooked me throughout the 16 episodes. It is mixed into different genres - crime, suspense, romance, bromance, psychology, containing different emotions - anguish, pain, anger, love. Which is probably why I love this drama so much. STORY: First few episodes was quite flat because you probably won't understand what exactly happened but don't give up watching. Each episode will just tempt you to watch the next one, and then the next one. I'm glad that there's only 16 episodes - nothing more or nothing less. Loving the pace and and the intense content in every episode. I also like how this drama puts its focus into child abuse/abandonment and how each crime scene are jigsaw pieces that made up a puzzle. ACTING/CAST: Seo In Guk never fail to disappoint me again with his superb acting skills. He can portray this character perfectly - a cold person yet having a warm heart inside, someone who actually needs comfort like anyone. I would like to applaud for Park Bo Gum for his acting as well. How can someone like him act so creepy or mysterious yet on the other side, such an innocent kid who just craves for affection? Will definitely watch his other dramas next time. (: MUSIC: I could only remember the OST I Remember You because it was always played during certain emotional scenes. However this show usually plays suspenseful background music which just gives you goosebumps. REWATCH VALUE: It wouldn't be fun to rewatch this show again since you will know how the cases are linked and who is the culprit and so on, but if to rewatch for BROMANCE SCENES, A YES! I still crave for more bromance! ): OVERALL: Yup, one of my best dramas i have ever watched. Do not hesitate watching this just because there isn't much romance or comedy in this show or because of the poor ratings. This show is really well-written with such awesome casts and producer and writer. I am now praying for a sequel for this drama!