Qu'est-ce qu'on a fait au bon Dieu?

A Catholic French couple, Claude Verneuil (Christian Clavier) and Marie Verneuil (Chantal Lauby), witness their life turned upside down when their four daughters marry men of different religions and origins. The Verneuils struggle to accept their sons-in-law, leading to a series of comedic and uncomfortable moments. As they navigate their complex relationships, the family must come together to support their youngest daughter, Laure, who is about to marry a man named Charles, a black West African from the Ivory Coast.