Nick Broomfield and a documentary crew visit Pandora's Box, an up-scale house of bondage on Manhattan's Fifth Avenue, where clients pay $175 an hour to be subservient to mistresses. Mistresses talk about their craft; a few clients, usually masked, are interviewed as well. Then, the camera watches sessions organized around fetishes: rubber, wrestling, corporal punishment, masochism, and infantilism. Mistress Raven, the owner of Pandora's Box, explains that pain need not be part of the subservient experience: it is, at its root, a transfer of power. After their session has ended, clients talk about how drained, relaxed, relieved, and at peace they are.

A documentary exploring the multiple facets of sexuality, the film took over five years of preparation and two years' filming. From the United States to Japan, via Brazil, Raphaël Sibilla delves into the world of the staging and fulfilment of fantasies, from the most straightforward – swinging soirées and SM bars – to the most extreme, fetishism and scarification. Although the notion of sexual pleasure is always present, the filmmaker gradually enlarges upon his subject and moves away from the simple, raw representation of sexual practices. He raises more general issues, without ever being judgemental, about his interviewees’ relationship to their bodies, seeking to understand the secret motivations and aspirations of men and women who are sometimes ready to go as far as mutilation to experience more intense pleasure.