In a movie where things aren't always what they initially seem to be, Calvin Cummings (BLAIR UNDERWOOD) and Francesca Davis (JULIA ROBERTS) are two Hollywood stars appearing in a film where they play Nicholas, an actor, and Catherine, the reporter who's following him around.
The film is apparently written by Carl Bright (DAVID HYDE PIERCE), a magazine editor, and Arty Dean (ENRICO COLANTONI), a theater producer who's putting on a stage show, "The Sound and the Fuhrer," with a pretentious actor (NICKY KATT) playing Hitler. Carl's wife, Lee (CATHERINE KEENER), is a V.P. of human resources who hates her marriage, job and life, and constantly belittles her sister, Linda (MARY McCORMACK). She's a masseuse whose client list includes Gus (DAVID DUCHOVNY), a Hollywood producer who wants something more than just a massage from her.
As the day and then evening wears on and many of the players prepare for a party thrown by Gus, their various stories and lives intersect.