The Duke of Omnium reluctantly accepts the position of Prime Minister, initiating a period of intense political and social scrutiny for his family. As the Duke navigates the complex demands of leading a coalition government, his wife, the Duchess, attempts to bolster his influence through elaborate social maneuvering. Their efforts to secure political stability are constantly undermined by the fickle nature of the aristocracy and the inherent instability of their parliamentary coalition. The narrative, presented in a third-person omniscient voice, examines the intersection of public duty and private ambition within the rigid structures of Victorian society.

Readers frequently highlight the meticulous attention to political detail and the nuanced characterization of the Duke of Omnium. Discussion often centers on the contrast between the public expectations of a Prime Minister and the private reality of the individual holding the office. Critics often note the effectiveness of the social satire, particularly regarding the Duchess's attempts to manipulate the political landscape through social events. The pacing is described as deliberate, favoring character development and thematic exploration over rapid plot progression. Many readers appreciate the cynical yet accurate portrayal of the hollowness found within the upper echelons of society.