A young man, a researcher in ancient languages, begins to receive strange radio messages in a language only he knows. The messages ask him for very bizarre missions. Eventually, he understands that he's just a pawn in an intergalactic game, and that the fate of Earth depends on him.

• Philippe Volter
• Christophe Bourseiller
• Nathalie Roussel
• Roland Giraud
• Maaike Jansen
• Marcel Maréchal
• Arlette Thomas
• Michel Lengliney