— Kiyoko Kagata is a Minamata disease victim. When she was 7, she began to show signs of the disease and was taken to a hospital for tests. She never left, and has lived there her entire life. The isolation she felt initially was devastating. As years passed and younger patients arrived whose family memories were also aborted, Kiyoko decided to help them, consoling them as an older sister. With the director of Hot House, Takeko Kato, Kiyoko and other congenital victims tell their stories with the hope of preventing further industrial pollution tragedies.