The Virgin Mary appears to Mario, a provincial barber who dreams of becoming a successful singer. He introduces her to his parents who decide to adopt her and give her a room in their house. The presence of the Holy Mother will soon break the monotony of the household. Teresa, Mario’s mother, starts to talk to a chandelier. Carolina, his sister, thinks she has become invulnerable and begins to hit her teacher. As for Mario, he thinks he has been invested with a special mission, to tell the truth at all times to everyone he meets. It soon turns out the Virgin is not what she pretends to be…

La vierge Marie apparait à Mario, garçon coiffeur de province, qui rêve de devenir chanteur à succès. Il la présente à ses parents qui l'adoptent aussitôt et l'installent dans leur pavillon. La présence de la Vierge à la maison va bouleverser la monotonie familiale. Teresa, la belle-mère de Mario, va se mettre à parler à un lustre. Carolina, sa petite sœur, se sent invulnérable et bat son institutrice. Quant à Mario, il se sent investi d'une mission sacrée, celle de dire la vérité à tous ceux qui l'entourent. Or, il s’avère que la Vierge est méchante.