I noticed that the summary for this film says 'hilarity ensues' and the film is billed as a comedy. However, if you watch the film without being told it's a comedy, you'll likely never know it, as it really isn't funny at all. Instead, it's a sad melodrama about two couples who find that they're looking for someone better...only to realize that happiness doesn't result from a new partner.
When the story begins, Dr. Evelyn Kirby (Shirley MacLaine) is seduced by a younger playboy, Greg (Stephen Collins). At first she's a bit apprehensive but then goes headlong into the affair. Soon Dr. Walter Kirby (James Coburn), Evelyn's husband, is approached by Greg's live-in girlfriend, Stephanie (Susan Sarandon), and she informs him of Greg's affair. Inexplicably, Stephanie and Walter begin an affair of their own.
The film has a decent message....that affairs don't solve a person's boredom and unhappiness. But the story itself if curiously uninvolving...possibly because I found it hard to really care about any of the people involved...they all just seemed amoral and sad. Not a bad movie but one I just found uninteresting.