Based upon Jeff Lindsay's novel Darkly Dreaming Dexter, Showtime's Dexter raises the bar on television drama as it chronicles the grisly exploits of a police blood spatter expert who moonlights as a serial killer. Unlike other serial killers, Dexter only kills the bad guys, a distinction that sets up one of the primary ethical conflicts of the show. Fans can delve deeper into the fascinating complexity of this hit show with this guide that offers articles, exclusive interviews, and an episode guide.