Dexter is lured into a trap. Liddy's body is discovered and the murder is tied to Quinn who gets unexpected help from an unlikely source to get clear of the charge. Deb allows her emotions to cloud her judgment.moreless
Dexter and Lumen are distracted from their mission by a visitor. A new investigation, that of the Barrel Girl, is sparked in Miami, and Deb, freshly reassigned to the file room, digs up novel evidence.moreless
Dexter tries to get the lives of his family back on track by temporarily curbing his dark urges, but is forced to reconsider after he makes a horrific discovery. Meanwhile, Debra finds it difficult to keep her private life private while sharing her apartment with Dexter and the kids.moreless
The final challenge between Dexter and Arthur comes. Debra finds out a long hidden truth. Rita admits that her marriage is troubled. Batista's and LaGuerta's relationship must face consequences.
Dexter continues to try to understand The Trinity Killer by talking to his family; he discovers that Arthur Mitchell may not have the perfect mask after all. With Dexter out on the prowl Rita gets a little help with her busy household from her handsome next door neighbor, but his motives may not be all that honorable. Debra continues to investigate the Trinity Killer and may be getting a little too close for her own safety.moreless
Dexter goes on a house-building excursion with Trinity, but still doesn't kill him. The team investigates more into the Trinity case and Rita gets close with a neighbor while Dexter's out of town.moreless
Dexter seems to have finally managed to balance work, family, and his dark passenger. But he knows the balancing act can't last. A series of murders leads the department to a prominent photographer, prompting Dexter to move him to the top of his list which doesn't sit well with Harry. But Quinn's effort to bond with Dexter poses a problem with hunting the new prey. Meanwhile, Debra returns to work and focuses on finding the Trinity Killer, which Dexter fears will put her in danger.moreless
Dexter knows it's only a matter of time before the Trinity Killer's latest handiwork is discovered by Miami Metro. He has to work doubly hard to stay one step ahead of their investigation. Debra is shut out from her own case. She considers risking her career and bending the rules in the name of justice. LaGuerta and Batista realize that by playing by the rules they may have painted themselves into a corner. Dexter gleans relationship advice from a most unlikely source when the friction between Rita and Dexter comes to a head.moreless
Debra recovers from the shooting but is emotionally distraught from Lundy's death and other life events. Dexter believes that it was the Trinity Killer and not the Vacation Murderer as the rest of the police force thinks. He gets closer to the Trinity Killer than he has ever been before.moreless
Dexter is left home alone and with free time as Rita takes the kids on a vacation which may prove interesting for Dexter in several ways. In the meantime two other relationships are on the line: LaGuerta and Batista debate about their future and Debra's own, as she helps Lundy with the Trinity Killer investigation.moreless
Dexter's neighborhood gets vandalized. The Trinity Killer strikes again, Debra questions her relationship with Anton as she spends more time with Lundy, and LaGuerta and Batista's relationship gets complicated.
Dexter misplaces needed evidence in the Trinity Killer case, evidence which could expose his secret. Meanwhile, Miami Metro must juggle two serial killers at the same time, as the Vacation Murders might bring the city's tourism industry to a grinding halt.moreless
It is the day before Dexter's wedding, and after the police find Miguel's dead body, Dexter has two people targeting him. Now he must deal with them both while preparing for his special occasion. Meanwhile, Angel tells Deb he's put her in for a promotion, but after he finds out some information, her shield may be gone before she gets it.moreless
Dexter and Miguel go through a new phase in their bond, which is not an easy thing for Dexter, since it heavily breaks his father's code. Rita is having mood swings due to pregnancy. Deb confronts Quinn and his shady past. Some new information about the "Skinner" comes to surface.moreless
Miguel finds a new target for Dexter. Dexter is asked to do the unthinkable for an old friend. Rita learns Miguel's wife believes Miguel is being unfaithful.
After a failed marriage proposal, Dexter attempts to convince Rita that he wants more than a financial merger and fatherhood. He wants a family with Rita. Deb lands a new case. Miguel's brother, Ramon, is dead set on finding Oscar's murderer, which worries Dexter and Miguel.moreless
After Dexter meets a pedophile at the grocery store, who's set his sights on Astor, he has to make a decision about his code. Miguel and Dexter both know the new body that showed up skinned wasn't Freebo's doing, and need to find a way to convince the Homicide Squad. Dexter is still wrestling with his potential role in the baby's life.moreless
Dexter continues the hunt for Freebo, knowing he is still in town after finding Teegan's body. Dexter and Rita must make a decision about her pregnancy. Dexter isn't sure whether he can raise a child. Deb searches for the identity of her body, not knowing the link to the Freebo case. Dexter races to beat the rest of the police to Freebo.moreless
Dexter has put his life back together but things may fall apart soon. His new victim is also being targeted by Assistant District Attorney Miguel Prado. Deb has to decide how to handle Internal Affairs, as they want her to turn on her new partner.moreless
Doakes follows Dexter to his next crime scene and shocks him with a revelation about Harry. The Bay Harbor Butcher task force feels they are zeroing in on their man.
Dexter realizes it won't be easy to end things completely with Lila. Dexter tries to stay ahead of the investigations, as the manhunt for the Bay Harbor Butcher intensifies. An enemy of Dexter figures out his secret.moreless
Dexter is attacked by the man who murdered his mother. Meanwhile, Lila wants to get closer to Dex, and Debra and Lundy close in on the Bay Harbor Butcher.
Dexter manages to get Doakes off his back. He devises a plan to get the police in another direction. Lila and Dex's relationship intensifies, and he has some interaction with Rita and the kids.moreless