In early 19th century New England, an unscrupulous woman uses her beauty and wits to seduce, deceive and control the men around her.
Amateur plumber Cluny Brown gets sent off by her uncle to work as a servant at an English country estate.
Middle-class housewife Kay Miniver deals with petty problems. She and her husband Clem watch her Oxford-educated son Vin court Carol Beldon, the charming granddaughter of the local nobility as represented by Lady Beldon. Then the war comes and Vin joins the RAF.