A lonely housewife trapped in a dull, sexless marriage begins inviting her lover home while her husband is at work. She only wants to fill the emptiness until the other man suggests an aphrodisiac. Curiosity wins, and the drug leaves her burning, hypersensitive, and overwhelmed by ecstasy. Soon she begs for it every time they meet and repeats the drug-fueled affair even as the cravings continue after her lover leaves, unaware that she is becoming dependent—or that her suspicious husband is closing in on the truth.