Trains passing by

Anne is in her late thirties and has moved back to her mothers home to care for her after an operation. The monotony of her days is broken only by the snapping sound of assembling a ballpoint pen and by the constant ringing of the phone. "You've dialed the wrong number," Anne repeats over and over. Meanwhile her mother has settled in front of the TV. Then one day, in the midst of all the hopelessness and gloom, the phone rings again.