Plain and timid Nora de la Sebiq-Tremont is sole heiress to the fortunes of a champagne empire. Discovering the delights of the Jazz Age in the roaring twenties - swinging parties, Coco Chanel and cocaine - Nora also discovers herself, a passionate, independent woman with her own destiny.
When millionaire Ivan Digby asks jewellery designer Jo Radcliffe to create a necklace for his fiancee, using the precious stones from the priceless `Fieldingley Necklace', Jo is intrigued. But Ivan Digby and his fiancee prove to be demanding customers, and Jo soon realises she has bitten off more than she can chew.
In London to organize a series of concerts, Greg Crowne has befriended a pretty Polish countess, Marcelina. So when Marcelina is found dead, Greg is drawn into the investigation. It emerges that Marcelina had been sent to England to buy a lost Chopin manuscript. Greg goes to Paris and Scotland on the trail of a thriving Chopin forgery industry.