Dexter of the title (Michael C. Hall), a man whose homicidal tendencies were discovered early in life by his adoptive father (James Remar). His cop father tried to fuel Dexter's unavoidable desires into something good: ridding the world of criminals who have evaded justice. When he's all grown up, Dexter becomes a blood-splatter expert for the Miami P.D., giving him unrestricted access to heinous crimes and those who commit them. But while Dexter dispatches Miami's worst, he wonders if his colleagues, his sister, Debra (Jennifer Carpenter), and his "love" interest, Rita (Julie Benz), will catch on to his true nature. The crimes--both those committed by the murderers and those done by Dexter--are grisly, but it's hard to look away from this unique, engrossing show, which is based on the novels of Jeff Lindsay. This collection presents the show's third season, which features Jimmy Smits as a tough district attorney partnered with Dexter.