Work forces a man to stay temporarily with his brother and sister-in-law. Sensing the beautiful wife's sexual frustration, he makes a drunken advance, but her husband interrupts them. Later that night he attacks her with renewed determination. Her desperate pleas keep him from penetrating her, yet his presence fully awakens her desire. After he catches her masturbating in the living room, she can no longer resist his persistent oral attention and sinks into an illicit relationship with her brother-in-law.