Two sisters, aged 5 and 8, hang out alone at home in the middle of the countryside. Elsa, the youngest, swallows three grains of coarse salt. Judith announces to her that she’s doomed to a death by desiccation, and she only has a few hours to live. The mother returns, behaving ardently and feverishly, and turns the family's destiny upside down.
Sixteen-year-old Logan is an adolescent uncomfortable in his own skin. Only his science fiction dreams of a better life on Mars draw him away from his ordinary life, which is as equally difficult at home or at school, where he's only seen as an aggressive loser. One evening, he receives a visit from a mysterious man who insists that he has come from the future and that he is also Logan, but forty years older. He then asks the younger Logan to carry out a mission as unexpected as it is important: to save humanity.
Odile, a textile worker, and her colleagues are told to evaluate newly-arrived young Tunisian women over a span of four days. Although there is no good solution, Odile will try to make the right choice.
