Mystery is a fiction genre where the nature of an event, usually a murder or other crime, remains mysterious until the end of the story. Often within a closed circle of suspects, each suspect is usually provided with a credible motive and a reasonable opportunity for committing the crime.
The genre is sometimes called mystery, although this includes non-detective fiction as well. Development. Edogawa Rampo is the first Japanese modern mystery writer and the founder of the Detective Story Club in Japan. Rampo was an admirer of western mystery writers.