1. Mathilde's husband brings home an invitation to a ball
2. Mathilde complains that she has nothing suitable to wear
3. Mathilde borrows a sparkling diamond necklace from her friend Jeanne Forestier
4. Mathilde and her husband attend the gala and have a fabulous time
5. Mathilde realizes the necklace is missing
6. Mathilde and her husband find another necklace to replace the missing one
7. Mathilde gives the replacement necklace to Jeanne who does not even look at it
8. The next ten years Mathilde's life changes dramatically