Darkly Dreaming Dexter, Dearly Devoted Dexter, and Dexter in the Dark are a series of suspense novels by Jeffry Lindsay featuring a killer who has his own way of seeing that justice is served. Dexter works analyzing blood for Miami-Dade Police Dept. but stalks killers who slip through the system and stops them. Dexter is devoted to his own moral code. Darkly Dreaming Dexter was dramatized on Showtime in 2006.