An orphaned boy escapes the cruelty of the workhouse only to fall into the clutches of a criminal underworld in Victorian London. Oliver Twist navigates a landscape defined by extreme poverty and institutional indifference as he seeks a sense of belonging. He faces opposition from Fagin, a manipulative fence, and the brutal Bill Sikes, who attempt to exploit his innocence for their illicit gains. The narrative employs a third-person omniscient perspective to critique the social structures of the era while tracking Oliver's precarious survival. His objective remains the pursuit of identity and safety amidst a world that views him as a disposable commodity.

Readers and critics frequently highlight the effectiveness of the novel's social critique regarding the treatment of the impoverished in Victorian England. Discussion often centers on the stark contrast between the grotesque, villainous figures of the criminal underworld and the idealized, virtuous nature of the protagonist. Many observers note the pacing reflects its original serial format, resulting in a series of high-tension encounters followed by moments of reflection. The atmosphere is consistently described as grim yet punctuated by Dickens's signature wit and moral indignation. Scholars often point to this work as a foundational text for understanding the evolution of the social novel.