It is 1956, and lovely divorcee Penny Dandridge has travelled to the small North-West African state of Barbouria to enter into a marriage of convenience with solid, reliable, British engineer George Staunton, who is working in the country. But while George is detained out in the hinterland by his job, Penny unwittingly falls foul of local customs and soon finds herself naked and bound facing strict justice at the hands of Captain Velasquez of the Barbourian police. She must make shameful amends to a man she has offended, and then consent to serve a week in the sinister "Seven Pits of Despair", which are situated out in the desert. Here any man who hires a pit can do what he wants with the helpless naked women prisoners who are condemned to pass through them. Penny must undergo this ordeal while hoping George never finds out about her shame.
One by one, Penny serves seven very different masked and anonymous masters, going by the aliases of Uncle Sam, Patron, Rajah, Ubermeister, Sharif, Vizier and John Bull. Each has their own perverse tastes in female degradation that Penny must endure. In turn, she is subjected to a spanking bed of tears, imprisonment in a giant electrified bird cage where she must sing for her supper, perform cruelly stimulating hard labour and endure a watery torment of painful suspension. On the way she is paired up with and must make love to another female captive ? a pretty, young local girl called Douna ? for their master's amusement. Together, she and Douna must haul a small carriage as ponygirls, and then, while Douna is put on a cruel treadmill, Penny must run a gauntlet of devices designed to push her to the limits of pain and degradation.
It should all be unremittingly repulsive to a woman of Penny's upbringing, but to her surprise she finds herself responding to her ordeals, and the intimate company of Douna, with increasing and inexplicable peaks of passion. Even if she sees her punishment through to the end, she knows she will not be the same woman who entered the pits. Will George still want her? Is she fit to be a dutiful wife? Has despair overcome hope and love?