本片是一部Comedy片，由Johannes Kiefer导演，由Alexander Beyer/Christel Peters/Ruth Nimbach主演。
剧情简介：Gregor, a young man, lives with and cares for his elderly grandmother. He's also a bit of an inventor. One day, when her wheelchair accidentally rolls down a hill and throws her into a pond, he gets an idea for an invention: A harness system that will let his grandmother walk again by supporting her weight. Meanwhile, her friends from the nursing home are trying to convince her to leave Gregor and live with them.
外文名：Gregors größte Erfindung
类型：Comedy / Adventure
导演：Johannes Kiefer
演员：Alexander Beyer / Christel Peters / Ruth Nimbach / Helga Göring / Doris Egbring·Kahn
