In July 1944, Arielle von Auspeck arrives at the glamorous Hotel Ritz in occupied Paris. Half French, half German, she is happy to be back in France, where her husband, Gregor, a retired colonel, will join her soon from Germany. Arielle and Gregor have thus far been able to hide their private opposition to Hitler. Then her world falls apart. She receives word that Gregor was part of Operation Valkyrie, a failed attempt to assassinate Hitler in Poland, and has been shot as a traitor. Now, holding a French passport handed to her by another high-level collaborator, she is whisked away from Paris under cover of darkness for her own safety. As the Allies storm the beaches, she goes into hiding in a small village in Normandy under an assumed name, unable to contact her adult children. There, she forms a friendship with Sebastien Renaud, whose wife and daughter were deported in 1941, and who eventually reveals himself as a forger in the Resistance. As war rages on, Arielle and Sebastien work for the Resistance and hold out for the time when they can search for their loved ones.