O is a young, vivacious photographer who falls in love with Rene. While their relationship seems like a storybook romance at first, everything changes when he sends her to a place called Roissy, where women are subjected to intense physical and psychological s&m training to make them the perfect slaves. After her training Rene passes O on to Sir Stephen as her new master, Rene wants O to seduce the beautiful model Jacqueline, and Jacqueline's young sister Natalie falls in love with O.