A husband and wife swear never again to sneak out on each other with their friends, and are both faced with complications when they go back on their word.
After getting pregnant from a one-night stand, a single woman leans on her married best friend and mother of two to guide her through gestation and beyond.
To help his divorced neighbor claim a substantial inheritance, a family man poses as her husband. The ruse spills over into his career in advertising, and his recent promotion relies on his wholesome and moral appearance.
Nathan Flomm, in order to avoid the humiliation of having missed out on a hugely successful business, assumes a new identity on Martha's Vineyard. He plots revenge when his former business partner moves to the same town.