McDormand plays Jane, a successful LA record producer, whose rock-and-roll lifestyle is a constant embarrassment to her uptight, anally-retentive son Sam (Christian Bale). Having defected to the East Coast where he feels more comfortable among the WASP academics and buttoned-up corporate highfliers, Sam is scheduled to bring his brainy fiance, Alex (Kate Beckinsale), to stay at his mother's home in Laurel Canyon to complete their medical studies while she goes away on holiday.