Intertwining stories of abuse, adultery, and anorexia center around a family and with obsessed mother living in Mexico City. Matilde is a nun convinced that faith moves mountains. Secretly she begins a mystic fasting to end what she considers to be the second great flood. Elena is a thin and fashion-conscious woman ashamed of her daughter’s chubbiness. She’s willing to do the impossible to make her daughter Linda thin so Linda will look like a little princess on the day she receives her first communion. At the same time Elena’s husband Gustavo – a professor of architecture - cannot cope any more with his wife's bones sticking into him during more intimate moments. For relief, he turns his attention to a buxom female student with a hearty appetite.