She married her childhood sweetheart, and even after more than ten years together their love remains strong. They live happily with her father-in-law, who occasionally returns from working away. But when her husband leaves on a business trip for several days, she is left alone with the newly returned father-in-law. Taking advantage of his son's absence, he begins using her body. His abnormal, unrelenting sex drive subjects her to pleasures she has never experienced before.