Tonight: the re-run of the tenth episode of season 6 "Ricochet Rabbit" on Showtime. The episode was written by Jace Richdale, Lauren Gussis & Scott Reynolds and directed by Michael Lehmann.
Dexter tries to figure out the Doomsday Killers' next victim before it's too late; Debra has a strong reaction to a crime scene, which leads her to the realization that she leans too heavily on her brother.
Refresh your memory by watching the promo below and find everything about the episode here.