The only way, the only way to save the show is to introduce magic and satanic elements. Dexter is now haunted by the remnants of every person he ever killed. Turns out, when you kill someone, their remant of their life force attaches to Dexter and creates shadow versions of negative force in the universe. Turns out, if one person kills to many people in the world, it opens up a gateway to hell though these shadow versions.

Where they fucking prior season 6?

What if Dexter had followed the books?