When Bill and Jean engage Monique as an au pair for their children they have no idea what a shattering effect she will have on their lives-especially their sex lives. Bill is strongly attracted to the uninhibited, thoroughly desirable French girl, and succumbs to temptation. Jean, sexually unawakened, proves an exciting challenge to her and eventually achieves a lesbian fulfillment. Her new, intense sexual desire is a revelation to Bill, and the complex situation is uniquely resolved by an unusually satisfying "ménage à trois"relationship.