Carola Huflattich is in the 4th grade, but she does not enjoy school at all. When she meets the school ghost "Boo", the two of them make a deal. Without Carola's good friend Willi to keep her on the straight and narrow, she would really be in trouble. One day at school, Carola has an idea. She invents what she calls "International Ghosts' Day" and a ghost named "Buh" to go with it. When Buh turns out to be less-than-imaginary the two decide to switch places, with Buh taking on all the schoolwork, and Carola taking the opportunity to play practical jokes on all her friends...
Carola Huflattich is in the 4th grade, but she does not enjoy school at all. When she meets the school ghost "Boo", the two of them make a deal.
Without Carola's good friend Willi to keep her on the straight and narrow, she would really be in trouble. One day at school, Carola has an idea. She invents what she calls "International Ghosts' Day" and a ghost named "Buh" to go with it. When Buh turns out to be less-than-imaginary the two decide to switch places, with Buh taking on all the schoolwork, and Carola taking the opportunity to play practical jokes on all her friends...