WELCOME TO L.A.

Celebrity musician Eric Wood (Richard Baskin) plans to record an album of songs written by Carroll Barber (Carradine), who has been living in England. Carroll's aging manager Susan Moore (Viveca Lindfors) brings Carroll to Los Angeles for the recording sessions, and rents him a house from real estate agent Ann Goode (Sally Kellerman). Ann is unhappily married to furniture store owner Jack Goode (John Considine), who is pursuing their young housemaid, Linda Murray (Sissy Spacek). Linda in turn wants a relationship with her friend Kenneth "Ken" Hood (Harvey Keitel), a married young executive.

Susan expects Carroll to resume a past affair they had, but he rejects her and instead has sex with Ann when she shows him his house. Ann tries unsuccessfully to continue the affair by dropping in on Carroll at home and bringing Linda over to clean. However, Carroll shows himself to be a womanizer, seemingly incapable of connecting with anyone. He visits his wealthy father Carl, whom he has not seen in three years. Carl, with the help of Ken Hood, has built the small Barber family dairy into a major business. Carroll ends up having affairs with receptionist Jeannette (Diahnne Abbott) and his father's photographer mistress Nona (Lauren Hutton).

Ken works long hours at the Barber business and neglects his wife, Karen (Geraldine Chaplin), a housewife and mother who is obsessed with taxi rides and the Greta Garbo film Camille. While Carroll is drinking and driving through the city, he randomly meets Karen and is drawn to her. He takes her to his home but when he tries to romance her, she reveals she is married (though not to whom) and departs. She later leaves him her telephone number, but refuses to take his repeated calls. Linda, who has moved into Carroll's spare room, invites Ken to visit her there, where he meets Ann.

Just before Christmas, Ken is thrilled to learn that Carl has made him partner in the business, but Karen is not happy that he will be spending even more time at work. On Christmas Eve, Ken gets drunk and calls Ann, but their date ends badly as Ken can't stop thinking of his wife. Meanwhile, Jack and Linda spend the evening together, which also ends badly when Linda asks Jack for money. Jack and Ann, both disappointed, return home and have sex with each other.

An angry Susan reveals to Carroll that Eric doesn't like his songs, and that she and Carroll's father bribed Eric to record the album in order to get Carroll to come to Los Angeles. Susan and Carl each hoped to build their separate relationships with Carroll, only to be thwarted by his lack of response. Karen, the only person who seems to have truly piqued Carroll's interest, finally appears at his home, but just as they are about to have sex, Ken telephones, upset and looking for his wife. Upon realizing that Karen is Ken's wife and seems primarily interested in her husband, Carroll leaves while Karen and Ken are reconciling on the phone, just as Linda arrives home. Linda, eavesdropping, hears the voice of Ken, her own crush, on the phone, saying the same things to Karen about relationships that he earlier said to Linda. Linda furtively disconnects the phone, then tries to bond with Karen, who imitates Garbo in Camille. Carroll goes to the recording studio and discovers that Eric Wood has decided not to finish the album.