In 1885 France, chambermaid Celestine begins her new position at the Lanlaire family home, a rural mansion, with the intention of moving up the social ladder. She starts working on her new employer, Monsieur Lanlaire, and he soon takes a liking to her, preferring her company to that of his domineering wife. Soon the eccentric neighbor, Captain Mauger becomes quite obsessed with having her working for him instead, and offers to marry her as reward for her coming to live with him, which would give her considerable wealth. Monsieur Lanlaire's sickly son Georges temporarily returns home to the estate, and in an attempt to make him stay longer, his mother does her best to make the attractive Celestine more beautiful by buying her fancy clothes, and orders her to take extra good care of her son.
Still, Georges makes plans to go back to Paris, and the desperate Madame Lanlaire orders Celestine, dressed only in her nightgown, to bring Georges some broth in his room. Georges realizes that his mother is trying to trick him into staying, and Celestine draws the same conclusion. Upset with Madame Lanlaire's attempts to manipulate her, Celestine quits her job and tries to catch a ride into town with the valet Joseph. He tells her of his plans to steal the silverware on Bastille Day, a few days away, and persuades Celestine to remain in the household as his accomplice.
Madame Lanlaire eavesdrops on their conversation and spoils the valet's plan. Instead, he starts planning to steal Captain Mauger's hidden money. While the captain is out celebrating, Joseph searches his house, and when the captain comes back and catches him red-handed, Joseph is forced to kill the captain to get away. Joseph tells the Lanlaires he intends to leave his position and marry Celestine, and Madame Lanlaire is overjoyed. She realizes her son Georges has fallen in love with Celestine. She agrees to give Joseph the silverware if he leaves the estate and takes Celestine with him. When Joseph and Celestine get delayed because of the celebrating crowds in the village, Georges manages to catch up with them, determined to win Celestine back. Joseph and Georges fight each other; Joseph is killed. Georges and Celestine go away together.
On the film's original release, Variety wrote "This is an odd yarn, the type done so well by the French – and so falteringly by almost anyone else. Diary in its American form has not nearly the intrigue, nor the color, suggested by the original French version, but it has names and an interest all its own."[3]