When Chicagoan Russell Stone begins teaching a Creative Nonfiction class, he meets Thassadit Amzwar, a young Algerian woman with a radiant presence. But he is disturbed by her - how can someone from a country ravaged by conflict be so happy?

Puzzling the melancholic Russell, Thassa's happiness prompts him to research her war-torn country and theories on happiness. His amateur inquiries lead him to college counselor Candace Weld, who also falls under Thassa's spell. Dubbed 'Miss Generosity' by classmates, Thassa's joy catches the eye of notorious geneticist and advocate for genomic enhancement Thomas Kurton who claims to have found the genotype for happiness. Yet, as media frenzy builds, Thassa's optimism is tested.

Richard Powers' Generosity explores the implications of a genetic basis for happiness, asking who would control it, and how would it reshape humanity.