Simple Mortel plot
Linguist Stéphane's (Philippe Volter) mastery of ancient Celtic is unique; hardly anyone but him masters it. At first he thinks of a joke when he hears messages in that language over his car radio, announcing disasters and having him selected for mysterious tasks; when bad things actually happen (a natural disaster in Japan, a wave of earthquakes), he takes it seriously and goes with his colleague Fabien (Christophe Bourseiller) and his girlfriend Brigitte (Nathalie Roussel) in search of the higher power, who must behind this to sit.