It has been six months after Debra has shot and killed Officer LaGuerta. A mentally-destroyed Debra has now quit her job at Miami Metro due to the immense amount of guilt and grief she has been feeling after killing her fellow officer. In her absence, Officer Batista comes out of retirement and is immediately promoted to the vacant position of Lieutenant. A new serial killer is on the loose out in Miami and is nicknamed the “Brain Surgeon” and Miami Metro is on his tail. Metro is getting some unexpected help from the psychopath expert Evelyn Vogel (played by Charlotte Rampling) who has quite the engrossment for Dexter. While this is all taking place, Debra is in the process of an undercover job with a private investigative company to bring in a bail jumper who has taken off with over $500,000 worth of jewelry that had been in a mob-controlled facility. Dexter finds out that the person Debra is trying to take down town is actually a mob hit man. Yet Dexter goes into a red rage after trying to discuss this with her and ends up killing the hit man’s mark, all the while the hit man secretly watches Debra leave. Quinn and Jamie have begun a relationship, which Quinn really wants to keep from Batista. Near the end of the episode, Dexter encounters Vogel who has murderous drawings from his childhood. Dexter threatens to kill her but she kindly reminds him that he can’t due to the fact that she does not meet Harry’s Code standards.