Two window dressers in a department-store basement tease Joe the drunk janitor about the mannequins being alive. Later, at 2:30 a.m., Joe puts on a tux and clocks out. On the street, he passes the store windows and the mannequins come to life, putting on a song and dance revue for him. He encourages the women in one window to visit the men in the next. Two mannequins pair up and sing a duet with ice cream cones, a railroad porter, and dancing couples. The spooning couple then joins a window of campers, singing “Let us live in beautiful illusion.” Then, the lovers stumble into a window of villains, including Joe’s doppelganger. Is the couple in danger? What will Joe do?