From the first scene of the drama, we are introduced to a hero that is not your typical hero. He' seems rude and anti-social (although there is reason for this), but what you'll come to find out throughout the drama is that he's very honest, not subjected to manipulation or bribery easily, and wants to do right by his job, which is to seek justice. The same is true for our female lead, she's definitely more likable but is also righteous in seeking justice. The two of them make a dynamic duo (opposite sides of law & order). It's great to see them form a lasting bond. Someone like Shi-mok often seems so lonely that its great to see at the end that he has friends. The murder itself is intriguing, but is just a small drop in the larger overall conspiracy that is swirling around them. There are also complex side characters, that you either love or hate, but they are never black or white. The chase scene in the beginning was thrilling and sets you up for the ride that the show will bring you on. I love the way they film the different scenarios that Shi-mok reenacts in his head when trying to figure out what happened. The look of the show also seems grittier, darker in tone, and the accompanying music adds to the overall feeling of suspense. Doing a re-watch, the drama is still great and that's due largely to the acting, writing, and directing of the show. You may know what is going to happen, but the excellent performances still pull you into the story.