Susana had a domestic problem with Mamá Cora. The first was preparing some mayonnaise and she went to nurse her daughter leaving the ingredients alone. Mamá Cora remembered an earlier conversation about caramel custard, and she thought that this concoction was to make some of it, so she innocently added sugar, milk and eggs, causing Susana's rage. Susana storms into Sergio's house, who's getting ready with his perfidious wife Elvira (China Zorrilla) and their daughter Matilde (Andrea Tenuta) to welcome, with the classic Sunday meal, newly rich Antonio (Luis Brandoni) and Nora, his wife (Betiana Blum), who ascended socially and economically in unclear circumstances during Argentina's last dictatorship. Mamá Cora's destiny is debated while lunch is burnt: Sunday ravioli and the tomato sauce made by Elvira. No one wants to take responsibility for the old lady with the women speaking out their opinions and the men trying to maintain respect for the name of their mother.
