Harry and Henriette are brother and sister from a real postman family. And they live… in a gigantic old mailbox!
One day, a letter arrives from Oscar, who misses his deceased grandma. Harry and Henriette want to help him so much that they decide to imitate his grandma. Soon, more letters follow: about a cat that is no longer there, a friend who moved away, parents who are splitting up.
With crazy plans, lots of imagination, and live music, Harry and Henriette try to conjure away every sadness… but does that work? A warm, funny, and musical performance for everyone aged 6 and up.