The Fritzl case is a very sad and scary story about a man named Josef Fritzl who lived in Austria. Josef had a daughter named Elisabeth and he did a very bad thing to her. When Elisabeth was only 18 years old, her father locked her up in a secret basement under their house.
This basement was very small and dark, and Elisabeth was not allowed to leave. She had to live there for 24 years and during that time, Josef did terrible things to her. He hurt her and he even had seven children with her.
Elisabeth and her children had to live in the dark basement without any fresh air or sunlight. They only had a few small rooms and they had to use buckets as toilets. They didn't have any toys or games to play with, and they didn't get to go to school or see any of their friends or family.
Finally, after all those years, Elisabeth was able to escape with three of her children. She had to be very brave to get out of that basement and go to the police. Josef was arrested and put in prison for a very long time because he did such a bad thing to his own daughter.
The story of the Fritzl case is a sad reminder that some people do bad things and we should always try to help others who are in trouble. We should also be thankful for our families and friends who love us and keep us safe.