Dexter Season 4 Episode 8: Road Kill

Dexter is seriously bummed out after he kills Jonathan Farrow, abusive douchebag S&M photographer extraordinaire who is nonetheless (technically) an innocent man.  Dexter vows to balance the scales and adhere to the Code of Harry and land Trinity on his kill table next and make things right.  He decides to do so by staging a little road trip, posing as his new alter ego, Kyle, and telling Arthur/Trinity that he really needs to get away and hitches a ride to Tampa with Arthur.  Dexter/Kyle foams at the mouth in-character that he needs to give back to the world and make things right. Arthur looks about as pleased about Dexter/Kyle infringing upon his road trip as he would be if he’d been told he was getting a saline enema. 

Unbeknownst to each other, it would appear that both Dexter and Arthur had packed for a kill on their little road trip: Dexter taking his supply of slides and kill tools (including Trinity’s hammer) and Arthur is seen packing sis’s ashes into a convenient travel-size vial which he wraps in a “Four Walls, One Heart” towel.