Dexter is an American television drama series that centers on Dexter Morgan (Michael C. Hall), a bloodstain pattern analyst for the Miami Metro Police Department who moonlights as a serial killer. The show debuted on October 1, 2006, on Showtime and the fifth season ended on December 12, 2010. As of December 2, 2010, the show has been renewed for a sixth season. Set in Miami, the show's first season was largely based on the novel Darkly Dreaming Dexter by Jeff Lindsay, the first of his series of Dexter novels. Subsequent seasons have evolved independently of Lindsay's works. It was adapted for television by screenwriter James Manos, Jr., who wrote the first episode.
In February 2008, syndicated (edited down to a TV-14 rating) reruns began to air on CBS. The series has enjoyed wide critical acclaim and popularity. Season 4 aired its season finale on December 13, 2009 to a record-breaking audience of 2.6 million viewers, making it the most-watched original series episode ever on Showtime. Michael C. Hall has received several awards and nominations for his portrayal of Dexter, including a Golden Globe. The series was picked up by Showtime for a sixth season, which was not billed as being the final season, leaving possibilities open for a seventh. The sixth season is set to start airing October 2, 2011 at 9:00pm (EST/PST). This show is rated TV-MA-L,S,V (AC, GL, GV, BN) on Showtime.
Dexter has followed The Code religiously to satisfy his "Dark Passenger" (the name he has assigned to his urge to kill). Like many serial killers, he keeps trophies; before dispatching a wrongdoer, Dexter makes an incision on their cheek with a scalpel and collects a blood sample, which he preserves on a blood slide. He stores his collection in a box concealed inside his air conditioner.
In the beginning of the series, Dexter states that he has no emotions, and he has to work non-stop to appear normal and blend in with the other people around him. Initially, Dexter is (with varying success) able to fake 'normal' emotions and maintain his appearance as an unremarkable friend and neighbor. He does maintain a few per
The third season finale on December 14, 2008 was watched by 1.51 million viewers, giving Showtime its highest ratings for any of its original series since 2004, when Nielsen started including original shows on premium channels in its ratings. The fourth season finale aired on December 13, 2009 and was watched by 2.6 million viewers. It broke records for all of Showtime's original series and was their highest rated telecast in over a decade. The fifth season finale was watched by a slightly smaller number of people (2.5 million). However, the fifth season as a whole was the highest rated season of Dexter, as it was watched, either on plain or on-demand TV, by more than 5 million people per week.