Bob is a young chorister who joins a choir at an austere educational establishment with the promise of being able to perform at Westminster Abbey. However it is discovered that Bob turns out to be Roberta. The Headmistress is outraged at this deception and tells the girl in no uncertain fashion that if she wants to be treated like boy she will be and that means getting the cane. There follows a thrashing of uncompromising severity. Roberta certainly hits some high notes as the biting cane sears into her bare bottom!