Jean-Paul is a Frenchman who yearns to live in communist Czechoslovakia. His wish is granted when, mistaken as a masseur of a French boating team, he manages to elude the democratic authorities long enough to scamper over the Czech border.
An occupation drama about a group of Czech scientists who, in a remote factory, investigate how to produce the vital penicillin as easily as possible - but for a long time they have been unable to find the only right mould to use as a base.
