Irascible and domineering millionaire Walter McCoy marries the beautiful, but shady and duplicitous Karen Petrie. Walter's son Steve automatically becomes smitten with Karen while both Walter's daughter Cynthia and loyal housekeeper Sarah suspect that something is up. This provokes a tangled web of deception, infidelity, and even murder.
The wife is a former stripper/prostitute in Las Vegas. At 27:05, she shows her stepson naked pictures of hers taken by her husband via a projector. She then seduces him and makes love to him on the couch.
At 32:44, the stepmom-stepson duo bang in a hotel room.
The husband has gone missing and no one knows his whereabouts. At 1:09:03, the wife and her stepson start making love and then they get interrupted by a noise. Apparently, the noise is caused by her husband and a confrontation ensues.