Indigo, bookseller and corporal punishment-loving submissive, is obsessed with an antiquarian work of sadomasochism that eluded her father all his life. Caned, roped, and shamed through the fleshpots of Europe, she will suffer any indignity to prevent Dervil Badon and his transsexual slave Natasha from getting their hands on her prize. But Dervil has no intention of allowing a mere submissive to own the legendary book.