Far from a perfect drama and yet it will pull you in right from the first scene. I usually do not watch melodramas or revenge dramas, but this one seemed interesting enough. This drama's strength lies in its plot, cast, the great camerawork and the TERRIFIC soundtrack!! I thought the plot of this drama was really creative. A lot of things introduced in the first episode tie up well towards the later half. The revenge part and the parallel investigation by the cop were wonderful. There was no need for romance in the drama according to me. It could have done well on its own. Although it can be a bit slow at times, it won't bore you. Kim Nam Gil is the star of the whole drama. This is my first time watching him in anything and I must say, I was totally enchanted by him. He has an amazing screen presence and acts with such depth and emotion that its impossible to tear your eyes away from the screen. I will also mention his long hair and moustache- suits him rather well. :D His character was the type you would want to see in a revenge drama. He is willing to go to any length to destroy those who did him wrong. Of course, he is very, very human and you'll see his soft side a lot of times. Kim Jae Wook was super likable in his role. I would love to see him play a tortured guy again. He was a breath of fresh air, because he wasn't your typical doormat second lead. Although he gets too repetitive after a while, I enjoyed his acting. Plus, he's great to look at! In fact both guys are eye candies. Han Ga In didn't impress me. She's pretty to look at and wore fabulous clothes but her character was really fickle and annoyed me at times. Her part in the drama made no difference to me. She was interesting in the beginning but went redundant later on. Her sister was a far more interesting person and she was the only HILARIOUS person in this drama. Although its one of those dramas which screwed its ending, I wouldn't say that it ruins the drama. The drama is worth watching minus the last 3 episodes. From the beginning I was prepared for what was about to come. If I hadn't known the ending, I would have been super mad at it. So I'd recommend to be prepared beforehand by reading the spoilers or skip this drama altogether. Bad Guy's OST will probably always be in my Top 3 Kdrama soundtracks ever. Every single song is beautiful, melodious and will make you want to listen to it over and over. Even the background scores were amazing. I liked how this drama was filmed. Its camera work managed to capture the right tone and mood of the story. Though this drama is not meant for a rewatch, it was entertaining enough the first time around.