The mirrors drawer

At night, Nelly waits in the hall of the building where she lives.
As the years pass, Nelly builds her old age through routine and obsession. With her tired and sad eyes, she looks for company throughout the building, but only with her cat and the great silence that runs her house accompany her.
Going up and down the stairs, slow walks, little slippery times, habits of solitude and mystery account for her enclosure.
Product of his disease in his right leg, Nelly receives daily visits from a nurse and occasionally a girl comes in the morning to make errands. Apparently, her family has left her in abandonment.
During midnight, Nelly ties up her dressing gown and walks down the hallway to the front door. Who does she expect?