With its posh clientele in the country for the summer, Georgie's housecleaning business has fizzled. So she tries hiring herself out as a dinner-and-theatre companion. But her first client has quite the wrong idea. To avoid further scandal, Georgie's shipped home to Castle Rannoch, where her summer plans include honoring a promise to Her Majesty to keep Castle Rannoch's divorcée houseguest from seducing the Prince of Wales. She's also been coerced into helping Scotland Yard with a top-secret mission - namely keeping an eye on the shooting party at Balmoral and preventing someone from shooting the Prince. And Georgie must manage all this without strangling her odious sister-in-law Fig or spineless brother Binky.