Fania Fenelon (Vanessa Redgrave), a classical pianist and singer in Paris, is arrested during the Nazi occupation for her support of the French underground resistance. After being sent to the Auschwitz concentration camp, she is recognized as a famous musician, and becomes a member of the camp's all-female orchestra. Although the group, under the leadership of conductor Alma Rose (Jane Alexander), forms a close bond, the strain of performing for their tormentors grows.