The film, shot in ''cinéma vérité''-style, depicts the final stages of the disintegrating marriage of a middle-aged couple (John Marley and Lynn Carlin). We are introduced to various groups and individuals the couple interacts with after the husband's sudden statement of his desire for a divorce. Afterwards, he spends the night in the company of brash businessmen and prostitutes, while the wife spends it with her middle-aged female friends and an aging, free-associating playboy they've picked up at a bar. The night proceeds as a series of tense conversations and confrontations occur.