The painting is inspired by a 1910 engraving (with the same title) by John Sloan, who had been Hopper's teacher at the Chase School, in which two women are depicted through two windows while carrying out some household chores

If I could say it in words there would be no reason to paint it

Hopper shows a lit room that appears in the darkness of the night through the glimpse of three windows that allow the observer to catch fragments of life inside the apartment. In the room, some furnishings can be seen, along with a woman of whom only the back and legs are visible - wearing a light and short red dress that recalls the tones of the sofa and the curtain that appears in the last window on the far right.
In a reference between exterior and interior, here placed in symbolic communication by the curtain fluttering outside the open window, Hopper analyzes the contradiction inherent in American society between the voyeuristic possibility of living other people's lives in an apparent closeness and the solitude and isolation that instead characterize it and that transform that fictitious physical closeness into emotional distance. In this painting too, the artist skillfully plays with the beams of light that from the windows are reflected on the stringcourse of the building