The sudden death of the Bishop of Barchester triggers a fierce power struggle between the ambitious Mrs. Proudie and the established clerical order. The protagonist, Septimus Harding, finds his quiet life disrupted by these shifting ecclesiastical alliances, while the arrival of the unconventional Mr. Slope introduces a disruptive force into the conservative social fabric of the cathedral town. Trollope employs a third-person omniscient narrator who frequently addresses the reader directly, providing commentary on the motivations of the various clergymen and their families. The narrative follows the intricate maneuvers of these characters as they compete for influence, status, and control over the diocese.

Readers frequently highlight the sharp wit and observational depth Trollope brings to the insular world of Barchester. Discussion often centers on the effectiveness of the antagonist, Mr. Slope, whose presence serves as a catalyst for the novel's most humorous and tense interactions. Critics often point to the balance between the lighthearted satire of clerical life and the genuine stakes involved for the characters' reputations. The pacing is noted for its steady, deliberate progression, allowing for a thorough examination of the social dynamics at play. Many readers appreciate the author's ability to make the mundane politics of a cathedral town feel significant and engaging.