A young model and her friends vacation at a horse ranch. The owner of the ranch is a nudist and takes the girls to a nudist camp to show them the wonders of nudism.

The talking staircase in a French apartment building reveals the intimate lives of five of the building's tenants: two bikini-clad young women go swimming together; a muscleman who is pretending to be a painter uses a nude model; Marcy, a 15-year-old, skips school to attend a party with the milkman; and a woman whose husband is out of town showers and applies skin lotion before going to bed.

Two police detectives are assigned to investigate the murders of several young women at a health club.

A psychoanalyst discusses a new phenomenon in urban America: women driven mad by loneliness. He gives us four case studies.