The greatest detective of them all is back. 'I have heard, Mr. Holmes, that you can see deeply into the manifold wickedness of the human heart'. Scandal, treachery and crime are rife in Old London Town. A king blackmailed by his mistress, dark dealings in Opium dens, stolen jewels, a missing bride -- these are cases so fiendishly complex that only the great Sherlock Holmes would dare to investigate.