I guess Blood is one of the dramas you either like it, get really addicted and watch earnestly until the end, or you hate it and drop it by episode 3. I'm part of the first team, and I'll explain why. Like a lot of vampire stories nowadays, there's nothing really special about this one. One vampire is evil, he thinks his species is superior and wants to do bad things with his knowledge; the other one is good and is fighting against his own nature through his whole existence, then he meets the love of his life and the villain and find a purpose to his life. Well, in this case, the good vampire already had a purpose, which was finding the cure to the virus that causes the vampirism. The plot is simple, yes, but how it was developed made me like the drama. Blood is my first medical drama, and I loved the way they mixed medicine and the supernatural stuff; it had lots of wholes in the explanations, yes, hell yes, but it was mainly good. Now, let's talk about the acting, because of course I need to. Starting with Ahn Jae Hyun, I personally think people are being unfair with him. He did well, seriously. He's only done a few dramas and Park Ji Sang being his first lead role, we can't expect him to be as good as Ji Jin Hee - and I won't even talk much about this guy; it was simply amazing, there's nothing else to say. It's hard to find an actor who won't make the villain in a vampire story seem silly. I don't agree with people who say supernatural stories aren't that big of a deal, I think it's really hard to act like all the unreal things you're saying are true, imagine doing it and still not sounding artificial (Blood had this problem sometimes, though). My main complaints regarding the acting are Gu Hye Sun (wow, what a surprise) and Son Soo Hyun. Because when they were doing fine, it was great to watch, but when they acted badly, it just ruined the scene. I had some problems, even though I tried to not be distracted by these incidents. The other supporting characters did fine, some better than others, so yeah, no problems here. (Hyun Woo, LUUVY and Sister Sylvia for the win!) The soundtrack isn't extensive, I guess it only has four parts. While part one and two (Only One, by Tiffany from SNSD, and Be Alright by Song Haye) are incredible songs, part three and four (I Can't Stop Loving You by Ha Hyeon Woo and Cell by MC Meta) are kinda meh. What I liked the most, though, were the instrumental scores, specially the one that was played in lots of episode endings, mainly the ones filled with action or tension (I can't say in which part of the drama you can find this song because it would be posting a spoiler he he). Overall, Blood's a good drama. It's fun, really. It made me cry and laugh and want to punch the wall because I got so angry. I understand why some people didn't liked and droped it, but it's always valid to give it a try. It depends on your taste, a lot, but if you start watching with no prejudices, you can have a good surprise. (And please give Ahn Jae Hyun a break, people. I won't let anyone who didn't watch the last episode tell me he's not a good actor.)