Filumena has lived for years with a wealthy pastry chef. She forces him to marry her, but he soon asks to annul the marriage. She then reveals that one of her children is his, making him obsessed to know which one.
When the most important friend in her life seems to have disappeared without a trace, Elena Greco, a now-elderly woman immersed in a house full of books, turns on her computer and starts writing the story of their friendship.
