Liverpool, May 1941. Margaret is going to live with Michael Armstrong, but when she visits him an aerial bomb hits the house, and sets the whole building on fire. Margaret is seriously hurt and taken to the hospital, where members of her family soon turn up to visit her. She is fourth months pregnant and everybody worries about the baby's survival chances. At the same time Mrs. Porter is on her way to Liverpool. A British soldier has found a letter written by John at the battlefield in France, and has sent it to her. The soldier is back in Liverpool, and now she wants...