The writer and college professor, Alexandre Fayard, researches and gives lectures about the gruesome literary work of the mysterious Japanese writer Shundei Oe, considered by him to be the master of manipulation. In his underground detective novels, evil always prevails and Shundei Oe has never allowed anyone to see his face. His only image available is a frightening picture on the back of his best-sellers. Alex travels to Kyoto to promote his successful detective story that follows the same style of the Shundei Oe but with a positive message instead. He meets with his publisher, Ken Honda, from the publishing house Hakubunkan, and a geisha who knew the writer. After these finds in his investigation, Alex becomes more determined to find the mysterious writer.
Hirai Tarō (平井 太郎), better known by the pseudonym Rampo Edogawa ( 江戸川 乱歩), sometimes romanized as "Ranpo Edogawa", was a Japanese author and critic who played a major role in the development of Japanese mystery fiction.