A scientific breakthrough allows Black Americans to alter their skin color, triggering a radical transformation of the American social hierarchy. Max Disher, a Black man in Harlem, undergoes the 'Black-No-More' treatment to become white, subsequently infiltrating white supremacist organizations to sow discord and expose the absurdity of racial prejudice. As the protagonist navigates this new identity, he faces the logical constraints of a society obsessed with racial purity and the physical risks of discovery. The narrative framework utilizes a satirical, third-person perspective to dissect the economic and political motivations behind racial conflict. The story follows Disher's rise within the ranks of the Knights of Nordica, where he manipulates the group's leaders to further his own financial gain and social standing.

Readers and critics frequently highlight the work's sharp, biting satire that remains relevant to discussions on racial politics. Discussion often centers on the author's ability to expose the economic underpinnings of racism through a speculative lens. The pacing is noted for its brisk, journalistic quality, which keeps the focus on the social implications rather than sentimental character arcs. Many observers appreciate the cynical humor employed to dismantle the logic of racial hierarchy. The book is widely regarded as a significant contribution to early twentieth-century social commentary.