A tough milk delivery woman, Hyun-soon has a secret that she doesn't want to reveal to others. Her unconscious old mother in a hospital and her pregnant daughter in her 20' s only know Hyun-soon's secret. When her sister and brother are against to their mother' s life prolongation, Hyun-soon says weird things. As the family has noticed about her secret, they think that Hyun-soon is into a heretic. They plan to leave Hyun-soon out in the cold.