Extremely engrossing erotic thriller. Strong, fresh main characters and a series of mysteries and plots with unexpected outcomes... Lieutenant Kingsley Boissonneault is used to receiving various tasks from the secret military intelligence service - to spy and hunt down the worst criminals, to lie and cover up his identity, and to kill without question. Still, the new task takes him by surprise. His commanding officer's nephew has disappeared into a certain sex cult, and Kingsley is supposed to bring him home. The cult worships the book The Story of O, the famous French sadomasochistic novel, and resides in a lavish castle where, as in the world behind the mirror, everything is reversed. Women rule here and men seem to be their willing slaves. But what if everything is different? In the castle, despite his task, Kingsley immediately falls under the erotic spell of the mysterious Madam, and not only with her, he experiences moments of the deepest passion and excruciating pain. Madam even offers Kingsley absolutely everything he could desire. But the price for that could be too high for him...