After her father passes away, Christine Langton is sent away to a boarding school despite being a tomboy. The school is segregated into three categories, including the upper, lower, and special classes. Unfortunately, Chris is placed in the lower division and forced to live in the outdated attic. Additionally, Ms. Desdemona, the severe headmistress, treats all the pupils poorly, leaving the students to take action and put an end to her tyrannical ways.