In 1964, during the construction of an electric dam, a macabre discovery causes a serious incident. Thinking that the communication outage on the construction site is caused by a broken telephone line, Raymond and Fleurian are sent to the site to repair it. They will be the first to discover what really happened to the workers...
Raymond
Fleurian
Ginette
Thérèse, La créature
Armand
1e Assistant du ministre
2e Assistant du ministre
Jean Lesage
Travailleur possédé 1
Travailleur possédé 2