We will follow our characters in their everyday life at Rivière-Bleue High School. However, they did not expect this day to go bad. They will be victims of an attack by a strange masked suspect.

Jacques Châteauvert, would be responsible for the disappearance and murder of two students at the Mont-Bleu high school in 1983. But this man had disappeared also without a trace. This mystery has become the worst ever happened in the history of Canada. 30 years later, in the same class in the same school, evil is back.—Olivier Lafond-Martel