February 1913: seventeen-year-old Leda, clutching a suitcase and her father's cherished violin, leaves her small Italian village for a new home (and husband) halfway across the world in Argentina. Upon her arrival in Buenos Aires, Leda is shocked to find that her bridegroom has been killed. Unable to fathom the idea of returning home, she remains in this unfamiliar city, living in a commune, without friends or family, on the brink of destitution. She finally acts on a passion she has kept secret for years: mastering the violin. Leda is seduced by the music that underscores life in the city: tango, born from lower-class immigrant voices, now the illicit, scandalous dance of brothels and cabarets. Leda knows, however, that she can never play in public as a woman, so she cuts off her hair, binds her breasts, and, as a young man, joins a troupe of musicians bent on bringing tango into the salons of high society. As time progresses, the lines between Leda and her disguise will begin to blur, and feelings that she has long kept suppressed will reveal themselves, jeopardizing not only her music career but her life itself.