Stefanie has been in Mistress Sandra's institute now for more than one year. But to become a perfect rubber slave girl is still a long way off. She spends her nights and attends her daily training lessons, severely packed in latex, often consisting of a blow up strait jacket with dildos and a leg binder. Additionally, she is in agony from all the dirty tricks of her classmates. Of course, Mistress Sandra does not accept such an illegitimate attitude, so severe punishments are common practice. For example, the Blow Job box, where girls have to give paying guests blowjobs. Stefanie's day ends with a cruel electro-shock therapy.