Show summary:
Based on Jeff Lindsay's novels Darkly Dreaming Dexter and Dearly Devoted Dexter this crime thriller follows Dexter Morgan. Dexter is a forensic blood spatter expert for the Miami Dade Police Department. He is the main support for his sister. He has a steady girlfriend, with two kids who adore him. He also has an active "night life". Based on a code instilled in him by his foster father, Harry, he hunts down people who have escaped justice and makes sure they don't get away with a crime again.
In the sixth-season finale, Dexter and Homicide try to stop the Doomsday Killers from committing one final murder, while Debra deals with a new emotional situation.
Dexter develops a macabre scheme to try to apprehend the Doomsday Killers. Meanwhile, Debra and LaGuerta's battle over the case of the dead call girl intensifies and Debra's therapist makes a bold and disturbing sugge...
Dexter races to identify the Doomsday Killers' next victim. Meanwhile, Debra's surprising reaction to a crime scene leads her to wonder if she depends too much on her brother.
Dexter receives help from an unexpected source while hunting for the Doomsday Killers and trying to stay a step ahead of the Homicide Division. Meanwhile, Debra's visits to her therapist uncover something surprising
Lessons learned from Brother Sam prove instrumental in Dexter's case; Debra and Capt. LaGuerta bang heads over an investigation into the death of a call girl.
Dexter is accompanied by a fellow Dark Passenger on a trip to to tie up past loose ends. Meanwhile, Debra's investigation into the Doomsday Murders is complicated by her lieutenant rank.
Dexter's case turns personal, while Debra's new duties as a lieutenant leave her feeling overwhelmed. She also discovers Quinn made a professional faux pas.
Dexter receives spiritual guidance from his new friend, Brother Sam, while his search for the Doomsday Killers leads him in a new direction. Later, Quinn and Batista visit Prof. Gellar's former university; and Debra i...
Gellar and Travis' latest disturbing tableau has Dexter questioning matters of faith. Meanwhile, Homicide uncovers evidence that the killings are religion-motivated and tries to find the zealot responsible; Debra give...
A serial killer from Dexter's past makes a shocking reappearance; Debra has problems settling into her new job; and Travis and Gellar contemplate their next move
Brother Sam, a minister with a criminal history, is brought in by the homicide department to help solve a macabre murder, but Dexter sees him for what he really is—and it's definitely not a man of God. Elsewhere, Debr...
Dexter Morgan attends his 20th high school reunion; Dexter considers his son's legacy; Debra becomes an unexpected hero.