Jennifer Aniston stars alongside Jason Bateman in this offbeat comedy as Kassie, a smart, fun-loving single woman who, despite her neurotic best friend Wally's (Bateman) objections, decides it's time to have a baby?even if it means doing it by herself... with a little help from a charming sperm donor (Patrick Wilson).

Seven years later, she reunites with her best friend, who has been living with a secret: he replaced her preferred sperm sample with his own... when he {Wally} gets acquainted with Kassie's cute--though slightly neurotic--son...