London; 1937.

Upstairs; Vivienne Edgerton is desperate to do something worthwhile with her time and her stepfather's money; rather than spending it on frivolity and debauchery - but will this land her in even more trouble?

And downstairs; chambermaid Nancy Nettleton is finally starting to feel more settled at the Buckingham; and hopes her brother will soon call London home; too. But she misses the man she loves; demonstration dancer Raymond de Guise; who is noticeably absent from the Grand Ballroom dance floor.

The staff and guests of the Buckingham soon discover that in a hotel full of secrets; there's always someone listening . . .