The poignant story of one woman's overwhelming faith in her talented but emotionally defenseless sister. Strong willed Fanny nurtures and protects Rosetta, from their vain and controlling mother Regina Basili, a faded opera star. Regina is blind to Rosetta's exceptional musical talent, refusing to accept that anything exists beneath the surface of her autistic daughter. Regina's ignorance and desire for adulation poisons her relationship with her children so deeply that Rosetta eventually tries to take her own life. Franny struggles to keep Rosetta out of an institution and force their mother to bear witness to the strength and human spirit that have been locked away inside her youngest daughter since she was born.