It might be best to discreetly misplace your invitation to these strained festivities. Neurotic New Yorker Kat Ellis (Debra Messing), an airline customer service representative, flips out when she's invited to the London wedding of her petite, self-centered, perfectly blond half sister, Amy (Amy Adams). Amy is marrying boy-next-door Edward (Jack Davenport), and Edward's best friend, Jeffrey (Jeremy Sheffield), just happens to be the man who jilted Kat two years ago. Undone by the thought of facing her former fiancé without a date, she hires one. An in-the-know friend recommends handsome professional escort Nick Mercer (Dermot Mulroney), who charges $6000 for his suav...