The narrative follows the life of Sidney Bidulph, a virtuous woman whose strict adherence to moral conduct leads to a series of escalating personal misfortunes. Sidney attempts to navigate the rigid social expectations of the mid-eighteenth century, often finding her own integrity and desire for propriety in direct conflict with the duplicitous actions of those around her. The story unfolds through an epistolary framework, utilizing letters to document the internal and external pressures placed upon the protagonist. As she faces betrayal and social pressure, Sidney must reconcile her personal happiness with the demands of a society that prioritizes reputation and duty above all else.

Discussion often centers on the novel's role as a primary example of mid-eighteenth-century sentimental literature. Readers frequently highlight the intense focus on the protagonist's suffering, noting how the author uses the epistolary format to emphasize the psychological toll of rigid social expectations. Critics often examine the work as a critique of the conduct-book genre, pointing out the irony in Sidney's attempts to live a virtuous life. The pacing is described as deliberate, allowing for a deep exploration of the protagonist's moral choices and the consequences of her unwavering adherence to societal norms.