The hit Showtime Original series, Dexter features Michael C. Hall as a serial killer who works for the Miami Metro Police Department. The series follows the day to day events of Dexter Morgan's life, a forensic blood spatter analyst, who also happens to be a serial killer in his free time. He was taught by his adoptive father, Harry, only to kill those "who deserve it"; mainly, other killers who have escaped the traditional legal system or were never suspected in the first place. It shows him balancing an everyday life with his secret identity all while keeping up a facade of normalcy.

Season 1's plot was adapted from the first novel in Jeff Lindsay's "Dexter" series, Darkly Dreaming Dexter. Subsequent seasons have featured original storylines.