Cassie's parents are under house arrest in Burma and the innocent virgin becomes the means for their release - if she agrees to be the secret slave of the General every Saturday for as long as he wants, their release will be negotiated.
The General uses her regularly, punishing her with painful sexual activities if she incurs tally marks during her time of servitude.
The submission ends with the release of her parents; but by then Cassie has been permanently changed, even when they are safely back in England, she continues to dream of her cruel Master; frequently standing before her mirror waiting for the command which doesn't come ...