Tucked away among Devon's rolling green hills, Mallowan Hall combines the best of English tradition with the modern conveniences of 1930. Housekeeper Phyllida Bright, as efficient as she is personable, manages the large household with an iron fist in her very elegant glove. In one respect, however, Mallowan Hall stands far apart from other picturesque country houses....

The manor is home to archaeologist Max Mallowan and his famous wife, Agatha Christie. Phyllida is both loyal to and protective of the crime writer, who is as much friend as employer. An aficionado of detective fiction, Phyllida has yet to find a gentleman in real life half as fascinating as Mrs. Agatha's Belgian hero, Hercule Poirot. But though accustomed to murder and its methods as frequent topics of conversation, Phyllida is unprepared for the sight of a very real, very dead body on the library floor....

It soon becomes clear that the victim arrived at Mallowan Hall under false pretenses during a weekend party. Now, Phyllida not only has a houseful of demanding guests on her hands - along with a distracted, anxious staff - but hordes of reporters camping outside. When another dead body is discovered - this time, one of her housemaids - Phyllida decides to follow in M. Poirot's footsteps to determine which of the Mallowans' guests is the killer.