The first book-length study of interwar Japanese detective fiction, Murder Most Modern considers the important role of detective fiction in defining the country's emergence as a modern nation-state. The author contrasts Japanese works by Edogawa Ranpo, Unno Juza, Oguri Mushitaro, and others with English-language works by Edgar Allan Poe, Dashiell Hammett, and Agatha Christie to show how Japanese writers of detective fiction used the genre to disseminate their ideas on some of the most startling aspects of modern life: the growth of urbanization, the protection and violation of privacy, the criminalization of abnormal sexuality, the dehumanization of scientific research, and the horrors of total war.