Catherine Morland, a young woman with an overactive imagination fueled by gothic novels, finds her expectations of high society challenged when she visits the estate of Northanger Abbey. Catherine seeks social acceptance and romantic fulfillment, yet she must navigate the complex social hierarchies and deceptive intentions of the people around her. Her tendency to project fictional tropes onto real-world interactions creates a series of misunderstandings that threaten her reputation and her budding relationship with Henry Tilney. The narrative employs a third-person omniscient perspective that frequently breaks the fourth wall to comment on the nature of fiction and the absurdity of the protagonist's delusions.

Northanger Abbey is widely regarded as a sharp and witty critique of the literary trends that dominated the era in which it was written. Readers often appreciate the humor found in Catherine's naive misinterpretations of her surroundings and the grounded, sensible nature of the male lead. The work is frequently cited for its meta-fictional elements, which demonstrate a sophisticated understanding of how stories shape human perception. It remains a staple of the canon for its ability to balance lighthearted social comedy with a serious examination of the dangers of living in a fantasy world.