Dexter begins to question Lila's suitability as his sponsor, and Rita encourages him to find a male one. Rita's visiting mother, Gail, becomes sure that Dexter is hiding something from the family. Cody starts having nightmares about the Bay Harbor Butcher. When Vince announces that he has found a way to identify the marina where the Bay Harbor Butcher moors his boat, Dexter attempts to destroy some of the evidence. Debra starts dating Gabriel, who she met at the gym, and LaGuerta returns to her job as lieutenant.