One evening in Saint-Claude in the Haut-Jura, Aymeric encounters Florence, an ex-colleague who is six months pregnant and without a partner. Aymeric is present when she delivers her baby, Jim. They enjoy several joyful years together until Jim’s biological father, Christophe, reappears. This could mark the beginning of a melodrama, but it also signals the start of a journey into the realm of fatherhood.