Adultère (mode d'emploi) (movie, 1995)

This French farce chronicles one special day in the lives of a married pair of Parisian architects, Fabienne and Bruno, as they anxiously await the results of an important architectual contest they have entered. Unable to handle the stress of waiting, both turn to sexual liason's to ease their tension. Bruno ends up enacting a dark sexual fantasy with a stranger while Fabienne eventually succumbs to the advances of Bruno's friend Simon, a fortyish Lebanese businessman and part-time drug dealer. The comedy takes on overtones of psycho-drama when the contest winner announced and the couple discovers the truth of each other's actions. A cache of drugs, discovered in an apartment only adds to their troubles.