Dexter and Arthur find themselves on a collision course, as Debra unearths a shocking long-hidden truth, Rita admits her marriage to Dexter is troubled, and Batista and LaGuerta face the consequences of an ethics breach. Season Finale.
Dexter must buy time to protect himself when Debra's investigation brings the department one step away from identifying Arthur as the Trinity Killer; Rita confides in Dexter, but is disappointed in the result.
Season 7 premiere. After witnessing her brother kill, Debra attempts to reconcile with Dexter while struggling to cover up their involvement with the murder.
Dexter tries to distance himself from Lila, but discovers she is unwilling to let go of their relationship; Lundy's manhunt makes Dexter nervous as he tries to stay one step ahead - but it's Dexter's worst enemy that learns his secret.
Dexter learns more about Arthur's bizarre and twisted world, while Rita has her hands full preparing Thanksgiving dinner for a full house, Debra uses the holiday to further investigate Trinity, and Batista gets closure on an old case.
The Ice Truck Killer takes extreme measures, forcing Dexter into a trap that will forever change his life, while Doakes begins to harbor suspicions about Dexter's odd behavior.
Special Agent Lundy and the FBI finally settle the case of the Bay Harbor Butcher, but the heat's not entirely off Dexter as the flames literally close in.
The disappearance of a ten-year-old boy forces Dexter to question his assumptions about Trinity, while Cody defends one of Dexter's lies and Masuka is unable to face what he witnessed on Thanksgiving.
