Adam Fenwick-Symes is a bright young thing; a novelist, he has just retuned from Paris only to have the manuscript that he is taking to his publisher confiscated by an over-zealous British customs officer. Contract broken, he is forced to sign a new deal which is far more crippling and he finds himself almost penniless. He breaks off his engagement to Nina Blount because he hasn't the money to keep her in the manner to which she is already accustomed. However, after he wins a thousand pounds in the bar of a hotel in Mayfair, he renews the engagement.Adam puts all the money on a horse racing bet with a man known as the Major but his new partner absconds immediately with the money. Adam goes to a costume party with Nina and they go on to a secondary get-together afterwards with a girl they just met, who takes them back to Number Ten, Downing Street. She is the Prime Minister's youngest daughter and the party is the talk of the town the next morning, and reported in all of the country's newspapers.