In 1958, in New York City, the upper class Diane Arbus (Nicole Kidman) is a frustrated and lonely woman with a conventional marriage with two daughters. Her husband is a photographer sponsored by the wealthy parents of Diane, and she works as his assistant. When Lionel Sweeney, a mysterious man with hypertrichosis (a.k.a. werewolf syndrome, a disease that causes excessive body hair), comes to live in the apartment in the upper floor, Diane feels a great attraction for him and is introduced to the world of freaks and marginalized people, falling in love with Lionel (Robert Downey Jr.).