A detective series is a genre of storytelling that focuses on the investigation of crimes, typically featuring a central character known as a detective. These stories often involve solving mysteries, gathering clues, and uncovering secrets. The detective may be a professional, like a police officer, or an amateur sleuth, and the narrative usually builds suspense as the plot unfolds. Detective series can be found in various formats, including novels, television shows, and films. Popular examples include Sherlock Holmes, Agatha Christie's Hercule Poirot, and modern adaptations like True Detective. These series often explore themes of justice, morality, and human nature.