Ole Zapatka

A dead biology graduate, a billionaire investor, a mysterious house and a rare beetle keep detectives Burkhard "Butsch" Schulz and Viola Delbrück busy this time as they finally investigate side by side again.

The adolescent Melli moves from the monastery to a big city. Since she is not very popular and is considered a gray mouse, she wants to be part of the popular girls' clique of the school. In the new environment she falls in love with Roque.