Creepy but brilliant

I've become totally addicted to Showtime's "Dexter," and not only because I appreciate dark humor and can identify with the main character's emotional detachment. It's a well-written show chock full of interesting characters and excellent acting. And those blood-spatter scenes look like a Jackson Pollack painting. Also, the show is incredibly well constructed--with two eps to go, I can't think of any wasted or gratuitous scenes. Few shows are as economical and tightly written as this one. I realize that the storyline is in a very dark corner of a very gray area (a serial killer who only kills other serial killers), and that there is a major creepiness factor, but this is a show people might want to check out.