Willow1979, Could you please explain the concept of the show to me because I don't get Showtime. And "Dexter" seems a little confusing.
Basically, Dexter (Michael C. Hall) is a blood spatter analyst for the police by day, and a serial killer by night. The thing is, his adoptive Dad was a cop and had caught on to what little Dexter was up to, so he taught him to only go after bad guys. He cleans up the mess the cops or the courts can't handle. The current storyline involves a serial killer that has struck up a "friendship" with Dex by sending him little messages/souveniers. Julie Benz (Darla on Buffy) plays Dex's girlfriend, who is a victim of spousal abuse and has kids, and she knows NOTHING about what Dex is up to.
That's it in a nutshell. You can watch a couple of eps if you go to:http://www.sho.com/site/dexter/sneakpeek/home.do
if it asks for a password, its SNEAK PEEK
You should check it out if you can handle the gore and such....it's a really great show from what I have seen.