The clue to the article of 'Necklace'?

The clue of " The Necklace " was the family background of the female protagonist, Mopassant, and the love story between her and the male protagonist, Nicolas Da Vinci. He was a famous French novelist and playboy. His works often involved personal feelings and family relationships. The Necklace was one of his masterpieces. It told the story of the heroine, Matilde da Vinci, and his teacher, Nicholas Proust. At the beginning of the story, Mathilde's necklace was stolen by a stranger, and she had an argument with the stranger to protect the necklace. At this time, she met Nicholas Proust, a painter. Nicholas was deeply attracted by Mathilde's beauty and talent, and the two began a relationship. However, Nicholas 'father objected to their relationship because he believed that Mathilde's necklace was his private property inherited from his ancestors. In order to solve this problem, Nicholas had a dispute with Mathilde's family. In the end, Mathilde's necklace was misunderstood as theft and was accused of being a criminal. At the end of the novel, Mathilde finally chose to break up with Nicholas because she realized that her relationship with Nicholas could not be recognized by her family. This story profoundly revealed the importance of family and marriage, but also showed the complexity and contradiction of human emotions.