CALL "M" FOR MURDER assembles an extraordinarily capacious archive of crime writing, spanning foundational detective puzzles, sensational thrillers, police investigations, espionage tales, locked-room enigmas, and studies in psychological menace. Its 885 narratives trace the genre's movement from Gothic uncertainty and urban sensation toward the formal intricacies of the classic whodunit. Memorable modes—including the brilliant amateur sleuth, the criminal mastermind, the procedural inquiry, and the imperiled innocent—appear in productive succession, revealing murder fiction as both popular entertainment and a sustained inquiry into evidence, motive, identity, and social order. The volume brings together writers associated with the nineteenth-century origins of detective fiction, the Edwardian thriller, the Golden Age puzzle, and transatlantic popular literature. Figures central to the genre's codification stand beside prolific journalists, adventure novelists, playwrights, and innovators of serial fiction. Their collective range illuminates the international circulation of crime narratives across Britain, America, and continental Europe, while also registering changing anxieties about class, modern technology, war, policing, and urban life. This collection is especially valuable for readers seeking both immersion and comparison. Its immense breadth permits close attention to recurring conventions and striking departures alike, making it useful for students of genre history as well as devoted mystery readers. To read across these works is to enter a continuing dialogue over detection, justice, fear, and narrative surprise.