that Deb does find out about Dexter. I'm getting too fed up of him wriggling his way out of seemingly impossible situations all the time now. They need to add that aspect to the show, I presume they probably will due to what's happened with Deb so far, with her shooting that guy and going on about how 'beautiful' the vigilante thing is.
As crap as I think Julia Stiles is as an actress, I don't want them to get rid of Lumen, purely because Dexter just met her this season so I think to get rid of another major love interest one season after Rita's death would be a bit crappy.
Johnny Lee Miller as a villain just doesn't do anything for me really, he doesn't come across as menacing or frightening enough. Even in the house with Lumen and Emily when he was smashing her with the fire poke, it didn't feel disturbing or anything. Then again, I find myself comparing him to Jon Lithgow, which is probably a tad unfair.
Disappointed to see Liddy go, thought he was a really good character, far and away the best they've introduced to the show this season, but it was always going to happen, I guess it was just a bit of an anti climactic death for me.