Mia lives in Hamburg with her family. When one of the flats in their building becomes vacant, her parents decide to move Mia’s great-grandfather in who su fers from dementia. Mia loves her Great-Grandpapa and is unperturbed by the fact that he is becoming increasingly forgetful.
Now she can remind him how you tie shoelaces and that you don’t clean your teeth with hand cream.
But Great-Grandpapa is not alone – a mysterious boy keeps appearing. He calls himself Berti and seems a bit old-fashioned…
When Great-Grandpa fogot to think
