Maxe is full of ideas for funny pranks and is eager to experience something exciting! However, his adventurous spirit is put to the test at the Schnittlich School. There, there are over 777 school rules and math class eight times a day. And everywhere, it’s also said: Please breathe quietly! Until the mysterious Inspector Rasputin Rumpus appears at the school. He works for the Bureau for the Combat of Boredom, has a penchant for disguises, and is on an important mission: to put an end to boredom! Just as Maxe, Frieda, and their classmates have recovered from a turbulent class trip, the strange Inspector Rumpus appears at the school again. At the same time, a masked figure flits through the winding corridors. Spooky? Maxe is not easily intimidated! Together with his class, he gets to the bottom of the mystery - and discovers something strict.