2. Every Silver Lining...

Complete story — includes the ending

This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. ( May 2026 ) ( Learn how and when to remove this message ) Vogel reveals to Dexter that she helped Harry create his Code, harboring a perverse interest and admiration for psychopaths. Vogel and Harry, Dexter's father, worked together to develop and shape Dexter's upbringing. Vogel asks Dexter to track down the Brain Surgeon, whom she believes to be one of her former patients and a grave hazard to her life. While tracking down the stolen jewels from the Briggs murder, Debra finds the jewels but El Sapo steals them and beats her badly. Later El Sapo is found shot to death. Another victim of the Brain Surgeon is found, just as Vogel predicted, with the same brain removal. Quinn and Jamie argue over Quinn's future and Batista's involvement in their relationship. At the El Sapo crime scene, Dexter finds traces of the perpetrator's blood and secretly takes it. Dexter tracks down one of Vogel's patients, Lyle Sussman, who he believes is the Brain Surgeon, but discovers he has been murdered. Later Dexter discovers it's Debra's blood at the El Sapo crime scene, and removes Debra from a horrifying interrogation about the murder. Dexter agrees to hide Debra's involvement in the El Sapo shooting from the police. Vogel and Dexter find a DVD from the Brain Surgeon, showing the killer forcing Sussman at gunpoint to do his bidding. Dexter agrees to track down the killer from Vogel's list of suspects.