A married woman named Alice has been living happily with her husband, who runs a company, for several years. However, she harbored one unresolved frustration; her husband was more interested in having children than satisfying their sexual desires. Their routine lovemaking became monotonous, leaving Alice unsatisfied. One day, while cleaning the house, Alice accidentally caught her vulgar and crude father-in-law watching them have sex. To her surprise, he seemed to understand her unfulfilled needs and began taking advantage of her husband's sleepy state by sneaking up on her...