Dexter is a crime thriller series on YouTube TV that follows the life of Dexter Morgan, a forensic blood spatter analyst who leads a double life as a serial killer. Dexter only targets other murderers who have escaped justice, making him a vigilante of sorts. The series explores themes of morality, identity, and the nature of evil. Dexter is known for its dark and suspenseful atmosphere, complex characters, and gripping storytelling. With its unique premise and compelling performances, Dexter offers a thrilling and thought-provoking viewing experience for fans of crime thrillers.