Lily Bart, a beautiful socialite in Gilded Age New York, struggles to maintain her precarious position in high society while facing the mounting pressure to secure a wealthy marriage. As she navigates the rigid expectations of the elite, Lily finds her personal desires in direct conflict with the financial and social requirements of her environment. Her attempts to preserve her status lead to a series of compromises and social missteps that threaten her reputation. The narrative, presented in a third-person perspective, tracks her gradual descent as she encounters betrayal and the cold indifference of the class she seeks to inhabit.

Readers frequently highlight the sharpness of the social critique and the tragic inevitability of Lily Bart's decline. Discussion often centers on the tension between the protagonist's desire for independence and her reliance on the very society that eventually rejects her. Critics often praise the author's ability to transform a traditional novel of manners into a biting analysis of cultural expectations. The pacing is noted for its deliberate, methodical build toward the protagonist's isolation, which keeps the focus firmly on the psychological toll of her circumstances.