Two brown girls dream of being dancers, but only one, Tracey, has talent. The other has ideas: about rhythm and time, about black bodies and black music, what constitutes a tribe, or makes a person truly free. It's a close but complicated childhood friendship that ends abruptly in their early 20s. Tracey makes it to the chorus line but struggles with adult life, while her friend travels the world as an assistant to a famous singer, Aimee, observing close up how the one percent live. But when Aimee develops grand philanthropic ambitions, the story moves from London to West Africa, where the origins of a profound inequality are not a matter of distant history, but a present dance to the music of time.