The Calle sisters are two heroines who give everything for their family, for their artistic career, and for a musical genre that showers them with glory and fame, but takes away a large part of their childhood and all of their youth. Nelly and Fabiola Calle cling to their love for popular music and the great power of their voices to position and sell to society a musical genre that's despised by radio stations and record labels and a genre with which few artists achieve recognition.