A comedy about exchange of 12 apartments , which, its organizer, lawyer Radosta, rightly called Action Ball Lightning. To prepare, organize and execute the exchange of twelve apartments is a work worthy champions. Radosta, who was excellently played by Rudolf Hrušínský, solved all sudden difficulties and complications on the fly and with grace. To be sure that the on the D-day everything goes well he prepares a little rehearsal, which reveals many minor issues caused for example by wedding ordered to inappropriate term or hesitation of some participants. Last but not least a night exercise announced by drunk psychologist Knotků, creates a lot of confusion that nearly sabotaged the whole operation.

An image and music collage - a cinema concert - guided by a young sound engineer David, for whom the exhibition on E. F. Burian is an incentive to take more interest in this avant-garde artist. The film interweaves two strands - documentary and factual, drawing on contemporary material and archival images - and fictional with the story of David the sound engineer.