The "HealMe" is a device that can apparently solve all problems. However, the device has no effect on Oskar, which is why he wants to return it together with his friend Ivan. The return turns out to be more difficult than expected, because Ivan is very fascinated by the device.
High above the clouds a big airship-city is flying. However, one of the balloons, which hold the city, is loosing air. That is why the airship is sinking. All the inhabitants there know about that, but they try to ignore it and carry on with their daily routines. It's a modern fairy tale about a...