The narrative centers on the moral decay and eventual spiritual ruin of Mr. Badman, a shopkeeper whose life serves as a cautionary examination of vice. Through a structured dialogue between Mr. Wiseman and Mr. Attentive, the reader follows the chronological progression of Badman's transgressions, from his childhood disobedience to his adult life of greed, dishonesty, and exploitation. The text operates as a didactic framework, utilizing the conversation between the two characters to dissect the social and theological implications of Badman's choices within a 17th-century provincial setting. The narrative maintains a rigid moral focus, contrasting the protagonist's ungodly behavior with the righteous observations of the interlocutors.

Readers and critics often identify this work as a significant precursor to the development of the English novel due to its grounded, realistic portrayal of daily life. Discussion frequently centers on the tension between the book's stark moral didacticism and its vivid, often gritty, characterization of provincial vice. Scholars highlight the text as a primary source for understanding the mythology and social values of 17th-century Puritan society. The dialogue format is frequently noted for its effectiveness in guiding the reader through complex theological arguments while maintaining a clear narrative trajectory.