Phillip filmore is a naive, 15-year-old, preoccupied with sex, who develops a crush on nicole mallow, the new 30-something, french housekeeper and sitter to look after him when phillip's father is out of town for the summer on a "business" trip. but mr. filmore's unscrupulous chauffeur, lester lewis, takes advantage of phillip's crush on nicole to hire her to seduce the youth, then draws her into a plot to fake her own death in a blackmail scheme aimed to drain phillip's trust fund.