London 1893, Gordon Wigfield, a respectable goldsmith and friend of women, was brutally murdered in his workshop. Chief Inspector Donald Sutherland Swanson begins the investigation. However, it does not stop with one corpse. The inquiries eventually lead Swanson into the highest circles of society. What role do Oscar Wilde and his lover Lord Douglas play? And what does Arthur Conan Doyle know? The cards are reshuffled when it turns out that the "Blue Hope Diamond" stored in the cellars of the London bank Parr at Cavendish Square is a fake...