Les Bingham takes umbrage that his ex-wife Katie has a new love in life. What he doesn't know is that her new paramour is lawyer Lou Springer. When Katie's sister Sally arrives and tells the two about her new, hip '70s marriage contract, Les and Katie decide to try to get together again under a more liberal marriage contract, like Katie's sister. But, unfortunately for the couple, the contract is planted with the seeds of self-destruction.
Elliott Gould
as Les Bingham
Diane Keaton
as Katie Bingham
Paul Sorvino
as Lou Springer
Victoria Principal
as Jackie Martin
Robert Alda
as Dr. Magnus
Warren Berlinger
as Steve Martin
Madge Sinclair
as Dr. Williams
Candy Clark
as Sally Bingham
Carmen Zapata
as Maria
George Tyne
as Dr. Morrison
Helen Funai
as Miss Ito
Sheila Rogers
as Miss Donovan
