Production Companies: Studio Munka , Stowarzyszenie Filmowców Polskich .
Overview: In the city water pump there are 8 clams. The lives of millions of people depend on them. In case of contamination of water supply, the clams will close and automatically shut off the water for the city. The main scientist-malacologist watches over the system's operation. The film is a philosophical essay on dependence people from nature and the world around them.
, Stowarzyszenie Filmowców Polskich .
