London, 1817. An impatient crowd is gathered outside the stage door of the Covent Garden Theatre, desperate for a glimpse of actress Hannah Granville after her latest performance as Lady Macbeth, amongst them the Prince Regent himself. But before she can appear a gunshot sounds, and a man lies dead on the ground amidst the ensuing chaos.
Sir Roger Mellanby MP had been a spearhead for social reform...