When the patriarch of the eccentric Lamprey family dies suddenly, Chief Inspector Roderick Alleyn must navigate a household defined by financial desperation and social artifice to identify a killer.

Alleyn arrives at the Lamprey residence to investigate a death that initially appears natural but quickly reveals signs of foul play. The protagonist must contend with a sprawling, impoverished aristocratic family whose members are motivated by the impending loss of their ancestral home and their own peculiar, often conflicting, personal agendas. The narrative framework follows a traditional third-person perspective, focusing on the methodical collection of clues and the psychological interrogation of suspects within the confines of the family estate. The investigation is constrained by the rigid social hierarchies of the era and the complex, often obfuscating, interpersonal dynamics of the Lamprey household.

Readers frequently highlight the author's ability to balance intricate puzzle-solving with sharp, observational humor regarding the British upper class. Discussion often centers on the vivid characterizations of the Lamprey family, whose eccentricities provide both comedic relief and potential motives for the crime. Critics often note the pacing is deliberate, favoring psychological depth and social nuance over rapid-fire action sequences. The effectiveness of the atmospheric setting is a common point of praise, as it reinforces the themes of stagnation and desperation inherent in the plot. Readers who appreciate classic Golden Age mysteries typically find this work to be a representative example of the genre's focus on intellect and social critique.