His distraught wife Marguerite, also a writer and in the same resistance network, is approached by a French collaborator working for the Gestapo, who says he may be able to give information on her husband's fate.
Once Paris is liberated and the Gestapo gone, the emphasis of the resisters switches to the fate of their captured members and support of their families.
As Allied armies start liberating the concentration camps in the spring of 1945, information begins to trickle back on who is still alive and who is dead.
Marguerite goes through agonies of waiting, torn between hope and despair, until it is confirmed that Robert is in Dachau and close to death.
The website's critics consensus reads, "Memoir of War benefits from a magnetic performance by Mélanie Thierry, whose work is often enough to counter some of the film's fundamental flaws.