I know I'm in the minority here and you don't have to agree with my opinion but for me the biggest let down of this drama was Shi Yoon. And honestly nothing against the guy I just think this role just wasn't for him. Honestly that hoodie and hair style made him look like a Yang Se Jong reject. It's like someone told him to channel the actor and somehow he'd get it right? And when he did finally did start having his own personality toward ep 10 ish it was all still pretty disastrous. But I will say this, the reason I kept watching was definitely Sung Hoon and also the writing, while nothing special, provides for an entertaining watch at least. And the violence is done rather well but while the idea itself of a psychopath dairy was intriguing enough, the rest of the story was a very typical plot -- main lead gets framed for crimes he didn't do and then the villain is found guilty and gets his comeuppance blah blah.