To ease their roommate through a relationship-induced depression, Christina Walters and Courtney Rockcliffe take her out on the town. During their attempts to find her "Mr. Right Now", Christina meets Peter Donahue. Missing her opportunity with him that night, Christina is talked into pursuing him to his brother's wedding.

Sandy, upon discovering her husband's infidelity while watching her son's birthday video, leaves the suburbs and moves into the city. She gets an apartment that's above a coffee house where she befriends one of the workers, Aram, a guy whose wife only married him so she could get a green card. Aram's family thinks he's wasting his life and education by working in the coffee house. Soon after moving into the apartment, Sandy hires Aram to be her nanny while she takes on work for the first time...

Brad and Kate have been together three years, in love, having fun, doing all sorts of things together with no intention of marriage or children. Christmas morning, they're on their way to Fiji, having told their two sets of divorced parents that they're off to do charity work. Through a fluke, they have no choice but to visit each of their four idiosyncratic parents. As the day progresses, Brad and Kate remember growing up, each learns more about the other, and Kate realizes that her life may...

Dave and Ronnie, Jason and Cynthia, and Joey and Lucy are close. The group used to include Shane and Jennifer, but they divorced and she's gone. Jason and Cynthia announce that their marriage is in trouble, and they beg their friends (and Shane's young girlfriend) to join them on a couples' retreat, at the package rate, on a tropical island. The others reluctantly agree, planning to play while Jason and Cynthia work on their marriage with an island psychologist. To everyone's surprise, the...