In September 1914, in the Vosges, Suzanne Faure is a young nurse who performs clandestine abortions at the Salpêtrière hospital in Paris. She tries to flee to Switzerland after an abortion that has gone wrong. She asks for help from the smuggler Jeanne Charrier. She is threatened by the husband of the deceased mother, Louis Compoing, who is a judicial inspector. After taking refuge, the two women are attacked by a German patrol. Suzanne took the identity of Jeanne who had died. She is taken to a convent that has become a military hospital that treats the wounded.
The convent is led by Mother Agnes who sees her faith disturbed. Moreover, she meets a soldier who has an effect on her.
At the brothel of Saint Paulin, a prostitute, Marguerite, is suspected of being a spy when plans are discovered in her room. In fact, she is looking for her son.
In a factory, Victor is called up for military service. His wife, Caroline, must take over the factory. But she is in conflict with her brother-in-law who is a deserter.
These women fighters survive this latent war atmosphere and the powers exercised by the men.