The rep told People:
Oh Dexter, what are you to do now that Deb's sneaked a peek at your dark passenger?!
And the anxiety-inducing promo is chocked full of enlightening visuals!
Deb has a heavy decision on her shoulders! What will happen if she chooses to turn Dexter over to the police?! Will Dex's moralist murdering alter-ego make an exception to Harry's code and silence Dexter's sister forever?
September 30th better come quickly or OUR dark passenger may rear it's ugly head!