Chisato and her husband live in a small rural town. Their son, shy and prone to shutting himself away in the storehouse, finally found a job, bringing relief to the family. However, a few weeks prior, the son attacked Chisato right after she finished bathing. It seemed he had grown curious about the nighttime activities of his parents. Chisato tried to convince herself that it was better this way, as it was something they could keep hidden from others. From that moment, a distorted relationship between Chisato and her son began. Despite her guilt, she continued to meet him secretly in the storehouse and kitchen whenever her husband was away. While pretending to be a normal mother in front of her husband, she gradually became more immersed in the affair. Then, the night before her son's first day of work, after her husband had fallen asleep, she embraced her son in the storehouse...
