When rich businessman Sir Roland Le Fevre and his formidable wife Victoria take over the running of Marchbank Academy, a private boarding school once attended by Victoria, they discover Headmaster Marcus Preston has been embezzling the school budget to fund his gambling addiction. Marcus and his voluptuous young wife Charlotte are now at the mercy of the sadistic pair when they decide on a bet to see which of them can train the most obedient person over a six month period, Victoria taking on Marcus and Roland training Charlotte. But with Sir Roland so often away on business Joel, the black chauffeur, gets the chance to train Charlotte, and the pretty school secretary Kirsty, at his employer's home. The naked trainee women are incarcerated in 'the cage' and Charlotte is punished in 'the chimney' bringing the girls suffering and degradation, while Victoria imposes a harsh regime at the school. Meanwhile nubile six formers Summer and Marianne fall prey to a prowler who stalks the school grounds and endure bondage in his ramshackle farm. The competition to produce the most obedient person and win the wager drives the dominants to take extreme measures. Discover who wins...