Memoir of War (2017) on Netflix

Plot summary

In the summer of 1944, Paris is still under German occupation and Allied armies are approaching. Robert, a writer and resister, is arrested. His wife Marguerite, a writer in the same resistance network, is left without news of him. She is approached by a Frenchman who collaborates with the Gestapo and says he may learn her husband's fate. In return he wants information about Morland, an influential resister, and, less openly, an affair. Marguerite consults Dionys, who heads the network and is also her lover, and agrees to play along.