Rie, who is in her third year of marriage, has not been blessed with children and lives a cold married life. Rie wants a child more than anyone else, but there is always a 0.03mm gap between them during their nightly activities. She begins to think of her father-in-law, who lives with her, as a man, and her feelings gradually escalate and become unstoppable. Rie, who has reawakened as a woman, crosses the forbidden bridge...