Emi lives with her husband, who runs an automobile factory, and her father-in-law. The company's business has been struggling due to the recession, and she and her husband have become sexless. Emi, who is in the prime of her life, is starved for human contact. One day, on her way to her part-time job, Emi is molested for the first time in her life on a crowded train. There, Emi feels lust that overcomes her Kokoro. Another day, Emi is molested again and discovers the surprising identity of the perpetrator...