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Dexter Wiki
Dexter Wiki

Sins of Omission is the eighth of twelve episodes and the sixty-eighth overall episode of Season Six of the Showtime series DEXTER. It originally aired 20 November 2011.

Dexter uses lessons he learned from Brother Sam to follow new leads in the Doomsday Killer Case. Debra butts heads with Captain Maria LaGuerta over the case of a dead call girl.


Dexter talks about how trusting kids are while buying donuts. He asks Francisco what's good for an apology to his sister and he recommends a cruller.

Debra is angry at Dexter because he left for five days during the Doomsday Killer investigation. He apologizes for taking advantage of her. She then tells Dexter about Holly Benson, who was dumped alive in a parking lot and adds that Gellar has a younger assistant. Dexter pretends to be surprised. He thinks that Travis is having second thoughts.

Travis finds Gellar waiting for him by his sister's trash cans. He shows Travis a drawing of an alligator with a chair on its back and says that it just needs "the right whore." Gellar implies that Travis' sister might do nicely and Travis warns him to stay away from her. Travis goes back inside and asks his sister if she wants to get away for a few days. She's charmed but can't because of her work as a teacher.

Dexter attends Sam's memorial service on Biscayne Bay beach, with Diego spreading his ashes over the water. After the ceremony, Diego gives Sam's blood-stained Bible to Dexter. Because he didn't kill Jonah Mitchell, Dexter wonders if Sam has changed him.

Dexter pays Travis a visit at the museum and asks why he let Holly go. Travis says that Dexter made him think that he didn't have to follow Gellar's orders. Travis insists that he can't go to the police and Dexter offers to help if he gives up Gellar's location. Travis warns Dexter that he has no idea how dangerous Gellar is. Travis says to leave him alone and he walks away without telling Dexter how to find Gellar.

Dexter and Masuka help piece together what happened to a high-priced call girl who apparently OD'd and then hit her head. They think someone attempted to revive her, then wiped her down and put the body back in its original position. Captain Maria LaGuerta shows up at the scene and tells Anderson to make sure that she's kept in the loop.

Debra tells the department that she needs them on the ball. Louis has given them a list of 200 potential Gellar accomplices. They are all male U. of Tallahassee graduates who are living in the Miami area.

Quinn is turned down when he invites Angel to opening night at a gentlemen's club.

Jamie drops by the station with Harrison to see Louis, and Angel isn't thrilled. Jamie persuades Angel to go to dinner with them so that he can get to know Louis.

Dexter goes through Sam's Bible looking for answers. The pages are still sticky with Sam's blood.

Dexter pays Travis another visit, this time at a diner. Dexter shows Travis a Bible passage about the sin of omission. Travis says that he can't risk antagonizing Gellar because he's worried about his sister. He promises, though, that after he gets Lisa to a safe location, he'll help Dexter find Gellar.

Debra knocks on Lisa's door looking for Travis but he's not there. Debra asks a few questions and Lisa says, to her knowledge, Travis doesn't stay in touch with anybody from school. She mentions that their parents died when they were young and she pretty much raised him. Debra gives Lisa her card and leaves just as Travis rides by on his bike. He notices the service weapon on her hip and keeps riding.

Maria tells Debra that she looked at the dead call girl's ME report, because "you have so much on your plate." She says it was ruled as an accidental overdose and the case can be closed. Debra thinks Maria is up to something and asks Dexter to put a rush on Jessica's blood work.

Gellar sneaks up on Travis outside Lisa's school and knocks him unconscious with a shovel.

Angel, Jamie, and Louis have dinner together at a restaurant. When Jamie goes to the bathroom, Angel tells Louis that Jamie isn't in a place to take anybody too seriously and makes a vague threat.

Dexter's blood report makes note of another person being present when Jessica died. Debra isn't sure what to do since Maria is snooping around. Suddenly, Debra spots Dexter's pen from the Shady Lane Motel in Kearney, Nebraska and calls him out on hunting Trinity. He claims that he felt "drawn there." He admits to talking to Jonah Mitchell, feeling a connection, and needing someone to talk to. Debra is upset because he didn't confide in her.

Dexter arrives at another scene -- The Whore of Babylon. A woman with a brand on her stomach, wearing a mask, is sitting atop an alligator with several heads. When the mask is removed, it's revealed to be Lisa. Debra recognizes her right away and the connection to Travis. On one of the garments, Dexter finds a label: "F. N. Galway" but he doesn't tell the others. When Masuka discovers Debra's card pinned under Lisa, she asks it's her fault. Dexter thinks it's his fault.

Travis wakes up on the floor of the church, bound in chains. Gellar references his sister and the Whore of Babylon and Travis realizes what happened. Gellar says there was no choice, since Lisa spoke with the police and betrayed him. Gellar places a piece of rebar in the fire and states that, by the time he returns, he hopes that Travis has a change of heart.

Maria asks Debra why she hasn't closed the call girl case and Debra tells her about Dexter's evidence of another person being present. Maria doesn't care about a john and a junkie and talks about their clearance rate. She orders Debra to close the case. When Debra leaves, Maria calls somebody and tells them that she has "taken care of it."

Louis helps Dexter with his F. N. Galway search.

Debra tells Dexter that a slip of paper with a number wasn't found on Lisa. Dexter knows that it means Travis didn't play a role in this murder. She asks Dexter if he wants to grab dinner that night. He declines, saying that he's tired and wants to spend a quiet night at home.

Debra meets with the therapist and talks about her brother and why she feels he doesn't treat her very well. Debra says their relationship is one-sided. The therapist suggests that maybe Dexter doesn't think there is any room for him in the relationship since Debra is always talking about her own problems.

Quinn takes Masuka to the grand opening of a new strip club. A drunken Quinn takes hold of a stripper and a bouncer orders Masuka to take him home. Quinn, however, insists on staying so Masuka leaves by himself.

Dexter locates Father Galway at a retirement home. He is elderly and suffering from dementia and thinks Dexter is somebody else from a long time ago. He grabs Dexter and demands that he confess his sins. When the old man mentions getting into heaven, Dexter tells him that he's killed "a lot of people." The priest loses track of the conversation and absolves Dexter of his sins. On his way out, a nun tells Dexter that Galway used to work at a church that's been abandoned for twenty years. He thinks this might be Gellar's hideout and wants to drop by that night.

Dexter arrives home to find that Debra has dropped by with dinner. When he tells her that something has come up and he needs to leave, she's hurt and angry.

Gellar burns Travis with white-hot rebar to "help get the demons out of your head." Dexter pulls up to the church and Gellar hears the car door close. He hides but sees Dexter's face. Travis finally tells Dexter: "I'll help you."


  • Kids trust everybody. They trust the food you're giving them is safe to eat. They trust you to lead the way. They don't question your motives. Give a kid a mouthful of sugar and trans fat, and he's your friend for life. Grown-ups are a lot harder. ~Dexter [voice over]

Related Pages


The Episodes of Dexter