Mark and Benjamin Keen haven't seen their father, Christopher, for more than twenty years. He has only just begun to shed light on his life as a master spy when he is murdered in cold blood by an unidentified assassin. Was his death connected to his MI6 past? Had Christopher uncovered a dangerous conspiracy involving his eldest son? And what were his links to Moscow, Afghanistan and the Russian mafia in London? To discover the truth and avenge their father's death the brothers are drawn into the legacy of his life as a spy. And inheritance can be deadly.