London, 1895. A heinous crime occurs at Baldomore Castle. A monstrous murderer kills the respected Lord Velton with cruelties. Visiting Scotland Yard to learn modern Western crime-fighting techniques in large cities is Tokyo Police Detective Teiko Shimura. He is invited to give his opinion on the crime and his insight and openness in considering the fantastic and the impossible builds a line of investigation that ends in discovering that there is a fine line between the wonderful and the real. Founding a special team, 'The Four Daring', he unravels the terrible secret that weighs on the life of a renowned American doctor and reveals the hideous face of the mysterious and cowardly murderer.