Set in the latter years of the reign of
King George III, George Bryan "Beau" Brummell, a captain in the Army, is on a military parade inspected by George, The Prince of Wales, the future
King George IV, and they argue about the uniform being impractical for active military life. It is here Brummell meets Lady Patricia Belham, who is accompanying Mrs.
Maria Anne Fitzherbert, the mistress of the Prince. As it is the Prince who has designed the uniform personally, the Prince instructs Brummell to get off parade and, after a further argument at dinner, Brummell is dismissed from the Army in disgrace. Upon entering life outside of the Army, Brummell makes his criticisms known of the Prince publicly and his comments are published in the newspapers. He is subsequently summoned to the Prince to be admonished personally, but after some discussion, they in fact become friends. As a friend and close advisor of the Prince of Wales (despite being the son of a
valet), Brummell becomes a fashionable man in London society, known for his exquisite taste and setting fashion trends among the elite. However, he is growing increasingly in debt. Brummell initially sees the friendship as the path to wealth and position, and in due course the Prince promises to make Brummell an
earl. Meanwhile, Lady Patricia has fallen secretly in love with Brummell, despite being betrothed to the less exciting Lord Edwin Mercer (another friend and advisor of the Prince), but he has wealth, rank and position -- everything Brummell does not have. Brummell convinces the Prince to see his father,
King George III, who has been mentally unwell in
Windsor Castle to try and break the influence of
William Pitt, the
Prime Minister. However, Lady Patricia finally decides to marry Lord Edwin and break with Brummell and, following Mrs Fitzherbert's decision to leave England, the Prince becomes more and more unhappy. Parliament offers the Prince the opportunity of a
Regency which would give him the power to administer the
Royal Marriages Act (meaning as he exercised the powers of the Sovereign, he could legally marry Mrs Fitzherbert), but without the power to grant
peerages. Brummell advises the Prince to decline the Regency, and Lord Edwin (who was aware of Lady Patricia's former love for Brummell) speaks out against Brummell. The Prince accuses Brummell that he has ulterior motives and is only interested in getting a title and has advised him poorly. As news of the Prince and Brummell's disagreement becomes public, so does his spiralling debts. At a society
ball (which he has to attend to try and keep his creditors thinking that he still has influence at Court), Brummell publicly insults the Prince, despite Mrs. Fitzherbert and
Lord Byron trying to broker a reconciliation, and he is forced to flee to France to avoid his creditors. The Prince subsequently succeeds to the Throne as
King George IV and plans a
State Visit to France, where Brummell has fled, living penniless in very modest lodgings. Deeply in debt, unwell, and out of favour, Brummell decides to write his memoirs, but once he realizes that the book will embarrass the new King, Brummell destroys it, acknowledging that his friendship with the King is still more important than the £20,000 offered by the publisher. While he lies dying, Brummell is visited by the new King. They both regret their rift and have a heartfelt reconciliation moments before Brummell's death. ==Cast==