Elizabeth (Jean Simmons), an English cousin of the Rambeau family, arrives in California in 1931 for a casual visit with her aunt and uncle, only to find her future pre-determined with a pre-arranged marriage to Andre Swann, a young cousin of another branch of the family. Another cousin, John Rambeau (Rock Hudson), disagrees with those plans, informs Elizabeth that she's being married off to consolidate the family's wine holdings, hints at other dark secrets of the Rambeau family, and casually romances her. Elizabeth is conflicted over the entire series of events.