Your wife, my wife (1988)

A film about changing partners and how the ensuing events affect the people involved. Cynthia Villanueva is an idealistic wife whose life revolves around making a happy home for her family where Rafael, her husband, plays the major role. This illusion is shattered when her husband becomes attracted to a flirtatious woman leading to an eventual erosion of her long-held values and her descent to adultery.