Mme. Loisel is an unhappy, material woman who dreams, and thinks she deserves to belong to the upper-class.
M. and Mme. Loisel were invited to a ball. Mme. Loisel wasn't excited about the invitation because she didn't have the adequate dress and jewelry for the event. To solve this, Mme. Loisel borrowed from Mme. Foreister, a very close friend, a beautiful necklace.
After being a sensation at the ball, when M. and Mme. Loisel arrived home after the ball, Mme. Loisel noticed she had lost the borrowed necklace. M. Loisel looked for it everywhere, but after a few days, all the hope was over.
After finding a necklace similar enough to the one lost, M. and Mme. Loisel had no option but to quit to the privileges they had as a middle-class, for them to finish paying the exorbitant necklace. 10 years passed until the debt was completely paid.
Mme. Loisel met with Mme. Foreister after a very long time. She decided to tell her about what had happened with the necklace, and what Mme. Foreister answered to her to got her aghast. The necklace she had borrowed had cost at most 500 francs. if she had just told her the truth since the beginning...