Les lendemains de veille tells the story of Vincent, Malo, Lola, Matéo, Blaise and Xavier. At the time they were young and had a dream, that of living together; free and autonomous. And this dream had a name: "The community of the days before." However, their group ended up doing like everyone else and they gradually lost sight of each other. They hadn't made a date in the future, but the death of one of their own decided otherwise.
Emma, 26, is engaged to Laurent, a soldier sent to Afghanistan. While waiting for her return, Emma, pregnant, prepares their future family life: but Laurent is slow to return from his mission. Thanks to the strength of their relationship, and to the complicity of other soldiers' wives, Emma holds out until a new ordeal comes to question everything...
Sébastien, a great lover of his land in the Basque Country, is alone in taking care of the family farm as worries pile up. Sebastien falls in love with his new neighbor, Juliette, as Catholic as he is Pagan.
Lucie, a young French woman passionate about perfume, sets out on a research trip abroad. Her tragic destiny crosses paths with Younes, a penniless taxi driver who delivers her into the hands of Islamist kidnappers, and with Abou, a jihadist also from France.