Jane, a newly qualified journalist, is desperate to find a job. Intending to write an exclusive story about a famous former teen starlet who, according to rumour, is incarcerated at the Carnacki Correctional Institute for Women, she tries unsuccessfully to arrange a visit. Eventually her perseverance pays off and she and her friend Trish end up at the Carnacki Institute, disguised as inmates. To avoid blowing their cover, the two young women have to attend classes run by strict staff who don't hesitate to use corporal punishment for the smallest infraction. Jane does manage to locate the former starlet and do an interview in return for sexual favours, but is crushed when her release date is quashed and she is forced to spend additional time at the institute. She slowly learns what really goes on in this place, and is at the mercy of rich and powerful men, many of whom attend Punishment Night. To her horror, Jane is secured to a punishment horse for a whipping... and that is only the beginning of her ordeal.