Wanna play? I really, really do

BTW I got hooked up on one American tv show - Dexter http://www.imdb.com/title/tt0773262/) . I guess you would have every right to call it morbid, but somehow it makes me think about what's right and what's wrong, does goal justifies every mean possible, can you do bad things like kill and not to be a bad person at the same time, how much of our lives are our conscious decisions and how much of it is consequence of our unconscious mind, our urges, our instinct.
I suggest you to watch it, definitely. But it must be seen from the start, or it's gonna be misinterpreted . It's topic is strange, maybe the characters are morbid but in the same time it's not stupid, shallow.