There were only eight seasons of the Showtime Original series "Dexter." The final episode aired in September 2013. Every episode of "Dexter" is available for viewing on computer, tablet, mobile device or streamed to TV through Showtime Anytime, which is free with every Showtime subscription.
"Dexter" follows the story of Miami forensics expert and serial killer Dexter Morgan, played by Michael C. Hall. Committing murders according to a strict code by night, Dexter spends his days solving the crimes of others. He constantly strives to achieve a balance between feeding his compulsion to kill and leading a life of happiness.