Fatherless Katherine carries the stigma of her mixed-race background through an era that is hostile to her and all she represents. It is only through music that she finds the freedom to temporarily escape and dream of a better life for herself, nurturing this hard-won refuge throughout the vagaries of unexpected motherhood and an absent husband, and relying on her talent to build a future for her family. Orphaned Mahsa also grows up in the shadow of loss, sent to relatives in Pakistan after the death of her parents. Struggling to break free, she escapes to Montreal, leaving behind her first love, Kamal. But the threads of her past are not so easily severed, and she finds herself forced into an arranged marriage. For Mahsa, too, music becomes her solace and allows her to escape from her oppressive circumstances. When Katherine and Mahsa meet, they find in each other a kindred spirit as well as a musical equal, and their lives are changed irrevocably. Together, they inspire and support one another, fusing together their cultures, their joys, and their losses--just as they collaborate musically in the language of free-form, improvisational jazz.