As American celebrates the bicentennial, Susan and Bruce Miller move their family to an affluent Chicago suburb. They are not only welcomed to the chick neighborhood, but also the social and sexual revolution prevailing throughout the decade. They find out that their neighbors share more than a view of Lake Michigan. Initially bewildered by their new surroundings, Susan and Bruce come to realize that their promiscuous neighbors present a tantalizing offer that may provide the excitement their marriage craves.