After her husband's death, Alice is now living with her father-in-law. To make ends meet, she takes on a job as an office lady. One day, she catches her father-in-law masturbating with her panty as his target. Enraged, he pounces on Alice, who is wearing her panty, and devours her with a frenzied passion. Though Alice initially resists, she gradually finds herself enjoying the sight of her father-in-law's climax...