The Orpington Bequest is a magnificent collection of jewellery made up of rubies, sapphires, emeralds and exquisite diamonds.

It is Stacy's job to take this collection across the Atlantic and, to disguise its worth, she carries the sparkling jewels in a black hat-box. But other people on the plane are using similar luggage and, somehow or other, there is a terrible mix-up.

A simple matter to unravel - but when the Orpington Bequest is at stake and the chase through London ends in murder, it is soon clear that someone both clever and ruthless is at work...