Robert is a SF writer, who realizes that he can make his thoughts material. Because of that, a group of aliens arrives to Earth. Their leader is Andra, who shows affection for Robert, which does not please his girlfriend, Biba. A monster, Mumu, has arrived together with the visitors from space.
The film is a metaphor for the Cold War. It depicts two neighbouring nations: peace loving Fortuna and the not so peaceful land of the Steel City.
Stage mime Antoine Moreau is compelled by the Gestapo to put on a performance for the children of Terezin, a "model" concentration camp, to convince the Red Cross observers that the camp is truly what it seems. Reluctant at first, Moreau slowly learns the true nature of the camp, including the meaning of the "transports" on which people leave. With a world-class orchestra (made up of people interned in the camp) and a cast of children, Moreau stages a show to end all shows.
