Little Momo lives modestly and withdrawn at the gates of an idyllic small town. The girl has many friends because she has the rare gift of listening to others. But one day the mysterious Gray Men appear in the city and persuade people to save time. With the support of the wise master Hora, she declares war on the gray men. The message by Michael Ende in 1974, the novel "Momo", which was awarded the German Youth Literature Prize, seems more relevant today than ever. For the Gärtnerplatztheater, composer Wilfried Hiller and lyricist Wolfgang Adenberg created a new version of the material.