The weakest season of the series ...

By itself, the season is not badly done, but it's just the same thing over and over again. We have the serial killer of the week brings the Dexter about the route, we have the kindred spirit / the friend who loses Dexter again. And now have a police station in the stuck somehow all cops extreme psychological problems or somewhere on dirt.

I just wonder whether the Miami Metro Police at all also brings in the entire series only one murderer behind bars - and no .... I do not think so. Dexter brings them all to advance. The Department seems to be completely incapable. A whole investigation unit found For hours nothing ... All stand helplessly around at the scene until Dexter arrives and can say exactly based on three blood spatter, as the murder had worked out.

(Spoiler)

The character development is somehow not comprehensible way:
Joey Quinn I liked better than me, but he mutated overnight from something obscure but authentic cop a complete idiot of gets drunk every day and verpeilt everything.
By Debra scatology has overdone it really in this season. In every other sentence repeatedly come before the F-Word. And then the discovery of her true love (do not want to give away too much) with the psychologist, that was really ridiculous.

Batisda is suddenly boring and two-dimensional. And the marriage with LaGuerta is also divorced suddenly (as if you had more to make out)
Masuka randomly selects two interns, both of which have skeletons in the closet and deal with material from the Aservatenkammer.
Only to LaGuerta can rely. That has been considered from the outset only to their advantage.

Also Dexter always behaves implausible and does not seem to learn from his mistakes - as well as Daddy can not help it. So he tries the Doomsday killer because he has tried several times to bring distance to defeat with his syringe still even after repeated trial.
Worst of all, I found even this quickie in between at the gas station. That just does not fit the character and the story has brought a millimeter forward.

The only thing that I found really succeeded was the end of the last episode of the cliffhanger ... Looking forward because forward to the next season. Hope is better.