Warsaw is mysteriously running out of water during the summer heat wave. This mystery can only be solved by a Polish superhero known as As.

Stanisław Maria Rochowicz, a bumbling art historian, is falsely accused of stealing a painting. The alleged thief faces five years in prison. Desperate, he decides to hide in disguise as a woman until he can paint a copy of the stolen canvas. Lacking means to live, he takes jobs as a maid for a variety of colorful characters.