The Head Case

Roger Standing, Commander of The British Empire, and the Prime Minister's Special Adviser for Education, is murdered. DCI Tom Caton is not short of suspects. But if this is a simple mugging gone wrong then why has MI5 ransacked his apartment, and why is Special Branch disrupting the investigation? And why are the widow and her son taking the news so calmly?
Roger Standing was not what he seemed...and something is rotten in the corridors of power. Will the killer strike again?