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.

A deeply disturbed photographer and Vietnam veteran, named Kirk Smith, terrorizes Los Angeles by going around strangling lingerie-clad young women in their homes while taunting Lindsay Gale, a young psychologist, by calling her on a radio call-in show to describe his sexual hang-ups and misogynistic ways, while a local police detective, Lt. McCable, is always two steps behind in trying to catch the psycho.