Manhattan architect Porter Stoddard (Warren Beatty) is a man in trouble. His wife Ellie (Diane Keaton) has found out about his affair with cellist Alex (Nastassja Kinski) and thrown him out of the house as a result. Porter wants to mend the rift, but wherever he goes he always seems to begin another affair. Eventually, after flings with Mona (Goldie Hawn), Eugenie (Andie MacDowell), and Auburn (Jenna Elfman), Porter makes it back to New York; but can he make it up to Ellie?