Set against the world of the nitrate mines and towns of northern Chile, the novel follows Alicia, a young woman from a humble background who one day begins singing boleros with astonishing perfection, despite knowing neither the songs nor their composers, nor even the musical genre itself. Her voice transforms everyday life in Algorta, drawing neighbors, curious onlookers, and believers who try to explain the source of her extraordinary talent.

As the phenomenon grows, the novel builds a vivid collective portrait of the Chilean pampas, populated by eccentric inventors, fortune seekers, working families, and memorable characters. Moving between popular realism and the marvelous, the novel explores music, memory, identity, and the power of the extraordinary to break into ordinary life.