Let's see what it is about. Dexter is a guy working in Miami PD, forensics expert, blood specialist. But he is no ordinary lab rat. He has a deep, dark secret... And this is the great part, I mean how many shows do we have where the main character is a serial killer? Dexter has problems, he has the need to kill, since his mother was killed in front of him when he was just a baby. So far we've got the villain part, but how can a killer he be a hero as well you ask. Well he is putting his "need" to use, by killing only, and strictly other criminals, killers. Dexter is like a modern day Superman or Spiderman, he is getting rid of all the scum from our society and that's what makes him a hero really. Where the authorities (the police) have failed he comes by to repair their mistake. During the show some people realise what he is doing and try to join him in his "crusade" but so far almost all of them wind up dead.
A bit about his personality. Well what can I say except he doesn't feel. He doesn't have feelings like you and me, compassion, even love (though this will change). This is maybe what makes him the psycho he is, I don't know if normal person will be able to sleep at rest, knowing what he had done. Dexter lives 2 lives, a bit like Walter White (Breaking Bad), but he plays his role as a normal person better, he manages to fool everyone so far. And this, I think, is because of his lack of normal feelings, his different thinking process.
Great! So far so good. For some of the people maybe the latter seasons get a bit repetitive - Dexter gets in trouble, and a really tight escape. Well I tend to overlook that a bit, cause the general idea, plot, storyline is genious, it has gotten me stuck in front of the monitor for days. It is pretty realistic to some extend. Well this is it, I can't write no more without revealing big spoilers for the show. Peace, I'm out.
Dexter Morgan: [voiceover] People fake a lot of human interactions, but I feel like I fake them all, and I fake them very well. That's my burden, I guess.
Dexter Morgan: [as victim averts his eyes from dead bodies] Look! Or I will cut your eyelids right off your face