Welcome to London, Jimmy and Sheila Broadbent. Jane, Jimmy's 17-year-old daughter. Jane is a descendant of Jimmy's first marriage to an American and has traveled to visit her father and her unknown stepmother. While she is in town, Sheila proposes to Jane that she become a debutante, a notion that Jane rebuffs. Difficulties include Jane's apathy toward being put on the marriage market, Sheila's cousin Mabel Claremont's determined efforts to win wealthy David Fenner for her debutante daughter Clarissa, and Jane's attraction to David Parkson, an American drummer who plays in the orchestra at the coming-out balls.