"Dexter" is a television series that follows the life of Dexter Morgan, a forensic blood spatter analyst for the Miami Metro Police Department who leads a secret life as a vigilante serial killer. He targets criminals who have escaped justice, using his skills to avoid detection while satisfying his dark urges. The show, which premiered in 2006, explores themes of morality, identity, and the duality of human nature. It gained critical acclaim and a dedicated fan base, leading to a revival series titled "Dexter: New Blood" that aired in 2021, continuing Dexter's story years after the original series concluded.