Plot Synopsis

Dexter Morgan is an affable police forensic pathologist by day and serial killer by night who is obsessed with meting out his own twisted brand of justice by stalking and murdering the guilty. In each season, Dexter usually has at least one main enemy: Brian 'The Ice Truck Killer' Moser (Season 1); Doakes and Lila (Season 2); ADA Miguel Prado (Season 3); Arthur 'The Trinity Killer' Mitchell (Season 4); Jordan Chase, Stan Liddy and Joey Quinn (Season 5); Travis 'The Doomsday Killer' Marshall (Season 6); and Isaak Sirko (Season 7). In Season 7, Dexter worked with Hannah McKay, an independent woman with a past that she's struggled to put behind her, at Miami Metro Homicide, and he began to wonder if there's more to this woman than she's professed. Plus, Debra was still reeling from seeing Dexter kill Travis Marshall, so brother and sister attempt to reconcile while struggling to cover up their involvement with the murder, leading Debra to attempt to cure Dexter of his killer tendencies. DEXTER's eighth and final season opened six months after LaGuerta's murder, with Dexter still managing life as a dad, brother, and serial killer. Debra, in the midst of an ongoing post-traumatic stress episode, was working as a PI for a private firm, and she and Dexter were estranged from one another at the beginning of the season. Meanwhile, Miami Metro, where Batista has replaced Debra as Lieutenant, was investigating the murder of a man who has had pieces of his brain removed. Season 8 debuted on Sunday, June 30, 2013 at 9pm ET/PT on Showtime.
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On Monday, February 6, 2023, Showtime announced that it has placed a straight-to-series order for the new drama DEXTER: ORIGINS (working title), to be executive produced by Emmy nominee Clyde Phillips, based upon the Emmy-nominated hit series DEXTER that starred Emmy nominee Michael C. Hall. The network is also developing a new version of DEXTER: NEW BLOOD, which depicts the ongoing emergence of Dexter's son Harrison. In addition, SHOWTIME is exploring projects based on other characters from the DEXTER universe, such as the makings of the notorious Trinity Killer originally played by Emmy winner John Lithgow.

DEXTER: ORIGINS will dramatize young Dexter Morgan at the outset of his transition into the avenging serial killer he would become. Set in the Miami that was a hotbed of real serial killers of his time, the show will begin as Dexter graduates college to join Miami Metro, where he meets younger versions of many of the characters we came to know in the original DEXTER. And, of course, the show will also focus on Dexter's family, including a very-much-alive Harry and a very formidable, teenage Deb.

DEXTER: NEW BLOOD is a new incarnation of the 2021-22 drama that became the most-watched series in SHOWTIME history. The drama focuses on Dexter's son Harrison, who survived his tumultuous reintroduction with his father and flees to New York City where he must wrestle with his own violent nature and whether, like his father, he too is compelled to kill. DEXTER: NEW BLOOD will explore the kinds of themes and scenarios seen in the original series on SHOWTIME but through a new lens.

In addition, SHOWTIME is exploring other characters from the DEXTER universe whom the network could develop for potential series.