Futaba has been feeling a bit frustrated lately. That's because her husband is so busy with work that he doesn't make love to her. She wants to have children soon, but... Just then, her husband's father comes to Tokyo. He will be staying at her house for two days for a memorial service, but Futaba doesn't like her father-in-law to begin with. That's because she doesn't like his sticky gaze and lewd look. Then, one night when her husband is working overtime, her suspicions turn into certainty!