Diamonds are this girl's best friend
Mathilde solves the first problem when her husband gives her money for a dress. But then she runs into a second problem: she's needs to have some jewels. Luckily, her friend Mme. Forestier is able to provide her with a fabulous diamond necklace. But now Mathilde's been entrusted with something expensive that belongs to someone else and we have the potential for disaster. It's true that the complication is often when things "get worse," and that doesn't really happen here (for that, we have to wait for the climax). In fact, after borrowing the necklace, Mathilde has the time of her life. But it's when she borrows the necklace that the possibility opens up for something really bad to happen…and it does.