Jean and Otto, a French newspaperman and a young German Francophile, are fighting for peace in Europe. Jean’s daughter, Corinne, is launching a brilliant acting career in the film world, but war breaks out and France is occupied. The two friends have a major role to play in this new France. Jean becomes a big press baron and an ardent advocate of collaboration with the occupying forces, while Otto becomes the Reich’s ambassador in Paris. Corinne, meanwhile, finds herself thrown into the lion’s pit.

Astrid Thompson finally succeeds in fulfilling her father's dream: to bring together four Stradivarius for a unique concert, eagerly expected by music lovers around the world. But Lise, George, Peter and Apolline, the four virtuosos recruited for the occasion, are incapable of playing together. The rehearsals are one ego crisis after another. With no solution in sight, Astrid decides to go and find the only person who, in her eyes, can still save the event: Charlie Beaumont, the composer of the score.