When a twist of fate delivers an ambitious young medical student to the court of King Charles II, he is suddenly thrust into a vibrant world of luxury and opulence. Blessed with a quick wit and sparkling charm, Robert Merivel rises quickly, soon finding favour with the King, and privileged with a position as 'paper groom' to the youngest of the King's mistresses. But by falling in love with her, Merivel transgresses the one rule that will cast him out from his new-found paradise. Determined to be restored to the King's grace, Merivel begins a journey of self-knowledge and soon discovers that the King's pleasure is equally matched by his wrath ...