Jonas Olsen, a chess player haunted by a tragic past, is given an opportunity to participate in a mysterious game, Divertimento.

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.