Dexter is a television drama series that airs on the Showtime Network. Dexter is a serial killer at heart. He is also the blood splatter analyst for the Miami Metro Police Department. He has been taught ""The Code"" by his adopted father to only use his urges to target those who are truly deserving of death. The rules are never get caught, only kill killers, be sure of their guilt. A little dark, but an award winning show.