All her life, Antonia Singla danced in the dark. The flamenco dancer, born to gypsies near Barcelona, lost her hearing as a child. Unable to speak, and communicating only by moving, La Singla (in Catalan, an affectionate nickname for a woman) started dancing while watching the musicians to follow the beat. By age 17, she was considered a sensation, and filled dancehalls thanks to her total performance and powerful expressiveness. But just when she reached her peak, La Singla disappeared. Fifty years later, a young woman stumbles across her story and starts an investigation leading to a surprising discovery.