A man so desperate for a promotion, he prostitutes his unwilling wife to his boss. Then despite this sacrifice, another man is brought in to take the position and the first man is faced with a demotion and potentially being completely ousted from the company. Humiliated, he commits suicide. His wife then vows revenge on everyone involved and manipulates her way into his home as a tutor to his teen son. Of course, what she teaches is not on a school curriculum. She further starts poisoning his wife, while seducing her and her husband. Everyone, of course, is set against each other.