Secret affair with sister-in-law

Restless and unhappy, two couples get caught up in infidelity and deception. Barry is a sullen businessman married to Mary, a writer who is unsatisfied with their relationship. Mary begins an affair with Jerry, a smug theater professor and husband of her friend, Terri, who is also a writer. Adding to the adulterous mix are Cary, a callous doctor, and Cheri, an art-gallery assistant.

A New York suburban couple's marriage goes dangerously awry when the wife indulges in an adulterous fling.

The story of the journey of married couple up the social latter. The husband is professor at Seoul National University who is running for the National Assembly, and his wife is a painter.

When a wife becomes the breadwinner of her family after her husband loses his job, adultery becomes part of her life.

When Larry and Maria learn that their respective spouses are cheating on them, they try to turn the tables on them by pretending to have an affair. However, they soon find themselves falling in love.