A son happens to find a DVD containing footage of his wife having sex with his father. Confused but unable to look away, he wonders how the two became involved. Knowing his illness will eventually kill him, the father decides to keep recording sex with his daughter-in-law for the rest of his life. He first drugs her with sleeping pills, rapes her while she is unconscious, and films everything—then uses the recording as leverage to subject her to further abuse.