She is small, but dangerous. Wherever Benni (Helena Zengel) ends up, she is immediately expelled. The wild 9-year-old girl has already become what child protection services call a "system crasher". And she is certainly not looking to change her ways. Because Benni has one single goal: to be back at home with her mommy. But Bianca is scared of her own daughter. Mrs. Bafané from child protection services is trying her best to find a permanent placement for Benni. She hires the anger management trainer Micha as Benni's school escort and suddenly there is a seed of hope. Will Micha be able to succeed where all others despaired?