The village of Momo moves at a leisurely pace, with no concern for stress or urgency - until the arrival of the grey men. These clever salesmen introduce a time collection account that puts everyone in a frenzy to accumulate time, except for Momo. As she watches her friends sacrifice social activities for time, Momo chooses to resist the grey men. This modern fairy tale emphasizes the value of time and how to make the most of it.