fight club, groundhog day, the swimmer, the killers, birdman...
There are no stairs, because the woman lives in a one-story house. The woman wishes she could afford a two-story house. Or at least one with a furnace and more natural light. But a one-story house makes sense. She lives alone. What does she need all the extra space for? Another cat? A family?
She pulls up a blanket, shivering. The yellow walls are starting to drive her insane.