-Marie Rousseau becomes a widow a little before the beginning of the Second World War. She tries as best she can to continue raising her children, Colette, Michel and Émile. In her job, she is supported by Tancrede, her brother-in-law (the brother of her deceased husband), secretly in love with her, and by Flore, an adorable maid. Pierre-Paul, the brother of Marie, is however there to put even more spice in the life of the widow Rousseau.