Overall this drama was really my style. Without doubt one of the best thriller subplot I have ever watched in a kdrama. The killer mystery was just the best ever, and the police team among my favorites for this genre of kdrama. The chemistry between the two main leads? Incredible. The slowburn? Great. But... what was that end... I was really disappointed by the end... like up until episode 15 I was so glued to the screen my eyes were hunting. Episode 16 felt directed by a whole different person I don't get it... I love this drama but will forever be bitter but that rushful and exaggerated ending. I wanted the two have a happy ending however, there were so many other ways they could have done it without ruining it so much.