When Lady Hardcastle and her maid, Florence, are invited to Lord Riddlethorpe's country estate for a week of motor racing and parties, they both agree it sounds like a perfectly charming holiday. But when one of the drivers dies in a crash during the very first race, they discover that what seemed like an uncharacteristic error in judgement may have a more sinister explanation . . .

Closer investigation reveals that the driver's car was sabotaged - and the driver murdered. The local constabulary are quick to dismiss the case, but Flo and Lady Hardcastle are determined to find out just who has committed this dastardly act, and why.

As the pair begin to make enquiries of Lord Riddlethorpe's servants and guests, it seems that, below stairs and above, there is more to this case than meets the eye. And, even in the quiet of the countryside, death is always just around the bend.