Dexter

Reeling from Debra witnessing Dexter kill Travis Marshall, brother and sister attempt to reconcile while struggling to cover up their involvement with the murder. Meanwhile, Detective Mike Anderson has an unfortunate run-in, Quinn and Batista begin to make amends, and LaGuerta finds evidence that causes her to re-think the closed Bay Harbor Butcher Case, which could mean trouble for Dexter -and Debra..

When a local convict claims he has new information regarding a fifteen-year-old crime spree, Miami Metro sets out to unearth new evidence on the case. While Debra attempts to cure Dexter of his killer tendencies, the Mike Anderson case leads to the Ukrainian mob, and a vengeful Louis won't stop meddling with Dexter's life.

Dexter tries to bring Debra on-board with his new target, while the Ukrainian mob seeks revenge for the killing of one of their own. Quinn grows close to a dancer at the mob's strip club, and LaGuerta attempts to enlist Batista to help her with re-opening the case of the Bay Harbor Butcher, who she believes is still out there.

After capturing a deadly killer, things go awry for Miami Metro, sending Debra into a tailspin. In an effort to help his sister, Dexter enters into a dangerous game of cat and mouse, while the Ukrainian mob continues to seek revenge.

While trying to uncover why Louis was killed on his boat, Dexter must out-maneuver Isaak, who's after Dexter - and Debra. New leads are brought to light on the Wayne Randall killing spree case by his alluring former accomplice, Hannah McKay, who Dexter discovers has a secret.

Dexter becomes more intrigued by Hannah, while Debra gets to know local crime writer Sal Price, who has dug up some possibly incriminating dirt on Hannah. Quinn gets made an offer he tries to refuse, while Batista is drawn to a new business opportunity. And try as Debra might, she can't stop LaGuerta from upending the Bay Harbor Butcher case..

Things heat up as Dexter and Hannah grow closer, and when Sal Price discovers the two are involved, he wants the exclusive story. Sal helps Debra uncover new evidence about Hannah, while Quinn makes questionable choices to protect his girlfriend, Nadia.

Dexter tries to keep Debra in the dark about his relationship with Hannah, but a surprise visit from Astor, Cody and Harrison throws a wrench into Dexter's plans. Now out of jail, Isaak renews his pursuit of Dexter, while Quinn continues his power struggle with the Koshkas.

Dexter is preoccupied with Isaak still on the loose, but an internal struggle within the Koshka Brotherhood could work to Dexter's advantage. And while Miami Metro is on the hunt for a Phantom Arsonist, Dexter goes to great lengths to protect his relationship with Hannah, asking a favor of Debra that causes her to question her loyalty to Dexter.

A surprise visit from Hannah's father puts Dexter on alert, and the Phantom Arsonist's crimes become more gruesome. Defending Nadia's honor forces Quinn into a dangerous situation, and LaGuerta brings on former Deputy Chief Matthews to help her with the Bay Harbor Butcher case.

As Christmas approaches, Dexter tries to balance his life with Hannah and his relationship with Debra, but unbeknownst to Dexter, Debra follows up on what could be an incriminating tip that Hannah's father gave her. However, when Dexter learns that the man responsible for ordering his mother's death has been released from prison, he zeros in for a kill that might end all kills.

As LaGuerta closes in on Dexter's secret, Dexter struggles to protect himself, Debra, and the life he's built, in this disturbing season finale.