Season 5 (2010)
Number of Episodes: 12
Intro: Season 5 of Dexter picks up with Dexter dealing with a heartbreaking loss despite his limited emotional range. And he has to deal with the hectic aftermath: taking care of his infant son, breaking the news to Rita's kids, avoiding suspicion from the authorities (especially Quinn) that he killed his wife and dealing with the nagging thought that he was indirectly to blame.
Original Air Dates: September 26 - December 12, 2010 at 10:00 PM ET/PT on Showtime
Season 5 Trailer
Episode #: 501 (49)
Title: "My Bad"
Summary: In the aftermath of last season's chilling finale, Rita's death has left Dexter feeling responsible, possibly even…guilty. Unable to deal with the trauma, Dexter makes a drastic decision that will impact everyone around him. Quinn stirs up trouble at the station when he notes that Rita's murder, which is being pinned on the Trinity Killer, doesn't fit his normal murder profile. Things get even more heated when Quinn suggests to LaGuerta that they look at the husband: Dexter Morgan. Meanwhile, Quinn offers Debra much needed support, causing her to see Quinn in a new light.
Episode #: 502 (50)
Title: "Hello Bandit"
Summary: In his new role as single father, an anxious Dexter tries to get his family's routine back on track, to begin the process of moving on from Rita's death. Dexter attempts to focus all his attention on the kids while curbing his dark urges. But when evidence of foul play falls into his lap, Dexter makes a horrific discovery, setting him on the trail of his next victim. Debra, trying to be the good sister, shares her apartment with Dexter and the kids only to find there's no room for her. She unhappily finds herself on Quinn's doorstep. Miami Metro has their work cut out when a grisly scene is found in a Venezuelan neighborhood.
Episode #: 503 (51)
Title: "Practically Perfect"
Summary: Dexter finds himself in a strange new world when he attempts to hire a nanny for Harrison so he can continue to stalk and kill his next victim. Meanwhile, Debra, who takes the lead on a bizarre double homicide, is displeased when Batista suggests bringing in an annoying rookie officer who has her own theories on the case. Things heat up for Dexter when Quinn notices strange similarities between Trinity Killer suspect 'Kyle Butler' and Dexter Morgan.
Episode #: 504 (52)
Title: "Beauty and the Beast"
Summary: Dexter catches a mysterious woman who may have witnessed him in the act of killing a killer; Deb has a frightening run-in with a murder suspect in the Santa Muerte homicides; and Quinn uncovers more striking similarities between Kyle Butler and Dexter Morgan.
Episode #: 505 (53)
Title: "First Blood"
Summary: Dexter is saddled with an unwanted conspirator; Dexter worries about how Rita's death will affect Harrison; Deb works alone; Quinn enlists an old friend's help.
Episode #: 506 (54)
Title: "Everything is Illuminated"
Summary: Striving to bring some normalcy back into his shattered life, Dexter figures the answer lies in finding a new serial killer to bring down, but his quest gets thrown off course when his troubled new acquaintance requires his help. Meanwhile, Batista uncovers a revealing new lead in the Santa Muerta homicides, and Quinn gets a tip about Dexter, but is not sure he can trust his source.
Episode #: 507 (55)
Title: "Circle Us"
Summary: By aiding Lumen, Dexter puts himself on a collision course with Debra and the homicide division, and things get worse when he's brought in to work a horrific crime scene; Debra's investigation into the Santa Muerte killings leads her into a deadly confrontation with the killers.
Episode #: 508 (56)
Title: "Take It!"
Summary: Debra and Batistia both find themselves between a rock and a hard place during the Santa Muerte investigation while Dex and Lumen hunt for their latest prey at a self-help seminar.
Episode #: 509 (57)
Title: "Teenage Wasteland"
Summary: 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.
Episode #: 510 (58)
Title: "In The Beginning"
Summary: Miami Metro uncovers more evidence in their ongoing investigations, and Debra names two suspects. Dexter, meanwhile, comes across a possible ally.
Episode #: 511 (59)
Title: "Hop a Freighter"
Summary: Damage control becomes Dexter's latest personal assignment, while Deb's speculation grows. In the meantime, a murder is tied to Quinn.
Episode #: 512 (60)
Title: "Through a Glass, Darkly"
Summary: Dexter is lured into a trap and Quinn puts his personal feelings about Dexter aside in order to ask his help in the fifth season finale. Deb lets her emotions cloud her judgment.