Macha is a 37 years old woman: she manages with her associate Fanfan a firm of fashion accessories.Now she is in love with Eduardo, a Brazilian young man who studies in Paris.Eduardo presented Macha to a professor as Mrs. Ferrera and Macha didn't appreciate the joke.Then Macha goes to a store: she meets a little boy who is lost and suddenly appears Pierre , her ex-husband who asked for her telephone number.When she was married with Pierre Macha didn't want to have children. In the night she meets her grandmother Hortense, who knows Macha's relationship with Eduardo and who thinks that Macha is free to have or not to have children.On the next she has to help Fanny , a worker of the factory because her baby has chicken-pox.Return at home Hortense tells her that she has made a blunder, she has mentioned Eduardo and now Anne-Marie ,the mother of Macha has invited Macha and Eduardo on Sunday at her house.