After the husband gets laid off, the mother decides to appear in an adult video to support the household. Her daughters accompany her to the filming location, trying to dissuade her from going through with it. The strict, education-focused mother insists it's for the family's sake, refusing to back down. As filming begins, moans fill the room, and upon hearing them, the daughters become overwhelmed by uncontrollable desire, giving rise to a new relationship.