Matthias is hopelessly overwhelmed when suddenly his mother Gisela is at the door. After a thigh fracture she sits in a wheelchair and needs help. When Matthias learns that Gisela has discharged herself from the rehab clinic, he realizes that she needs new life courage and is desperately looking for a solution. It comes quite unexpectedly from Tom, Gisela's ten-year-old grandson: Grandma needs a worshiper! The unusual plan works. The anonymous love letters, written by Matthias himself, enchant his mother. But when she wants to meet the unknown, all the dizziness threatens to fly up.
En los años 20, los hermanos Dassler se dedican a fabricar zapatillas deportivas. Tras la Segunda Guerra Mundial, la relación entre ellos se deteriora hasta el punto de convertirse en rivales.
