This drama is criminally underrated! The cliffhangers are always spot on, the soundtrack gives me the chills with that growl implying some shit's going down, the story is interesting in a very bleak way, incredible acting from everyone (Kim Sung Kyun !!!!!) and the finale stayed true to the previous episodes ... if there's something k-dramas really can't do it has to be drama finales but this time it's pretty good. I would have appreciated a way to get closer to the characters though, they are sort of one-dimensional for the most part.