A police inspector and inexperienced trainee search for a mysteriously disappeared manufacturer of ointments for hair growth.

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.

In this film, a couple, after seeing the lovely job a friend of theirs has done in converting an old mill house into a cozy mansion, moves into an old farmhouse after persuading the current owner, an old man, to leave. When they arrive, he appears to be preparing to leave, but it soon becomes evident that the man has no intention of going to live with his children, and intends to stay in the house. At first, they find his presence unbearable, but when he must go to the hospital, they begin to realize that they care for the feisty old gentleman.
~ Clarke Fountain, All Movie Guide