Cunégonde is a Woman of the World(1912)

The mistress of Cunégonde is going out so Cunégonde puts on her mistress' clothes. When she goes out into the street, she encounters an instantly enamoured gentleman who takes her to his house. However, when the man is about to declare his love the actual owner of the house barges in. Cunegonde's gentleman turns out to be just a regular servant and Cunégonde walks away annoyed. When Cunégonde meets the servant the next day she is still mad at him and quarrels with him. At the police station he declares his love for her in spite of her being a maid. They happily fall into each other's arms.