At 40, Frédéric finds himself yearning for fatherhood, despite having previously agreed with Claire that they would remain childless. In a moment of betrayal, he secretly fathers a child, leading to unexpected consequences. As Claire undergoes a dramatic transformation, feeling burdened by her partner's decision, Frédéric embraces his new role as a devoted dad. Their relationship faces intense challenges, forcing them to confront their differing desires and the implications of Frédéric's actions. Humor and tension intertwine as they navigate this uncharted territory of love, commitment, and the complexities of parenthood.