The decision to help his own father-in-law in managing his family businesses turned out to be an extraordinary adventure for our detective William York, and it will bring him to go up and down the whole Great Britain following the traces of a merciless serial killer who kills the victims in unusual and mysterious ways. With the help of his good friend Marmaduke (Scotland Yard's Chief Constable) and of an old teacher and expert in Italian literature, York will succeed in cracking the case, the solution of which hides within the pages of an ancient masterpiece of Italian poetry. As per the noblest tradition of British detective stories (Agatha Christie's ones for example), the author gives us clues and facts in order to achieve what William York achieves: it's a real challenge to the reader. Are you ready to accept it?