Teacher of science subjects Mr Moudrý intends to buy some Litopon white paint from the owner of a paint firm, Mr Čipera, since he has used up his supplies. Mr Čipera doesn't have this paint in stock nor had he ever ordered it from his commercial representative, Mr Bílý. Just at the right time an invitation arrives to a lecture on the production and use of this paint. The documentary part of the film presents the production of this paint in the factory at Hrušov near Ostrava. The lecturer points to the advantages of using Litopon paint, a weather-resistant, versatile paint with a smooth finish. After the lecture Mr Čipera decides to order the paint.
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