Things get complicated as members of the police hierarchy and also several politicians, all Freemasons, seem to be protecting one of their own. Furthermore, Inspector Foxborough, the policeman who is in charge of the case, is in fact the secret leader of the radicals, a political movement waiting for the British government to fall because of its incapability to solve the Whitechapel murders. Holmes must rely on his skills to find and confront the murderer.
