Strange things happen at night at the St. Agil secondary school. Baume, Sorgue and Macroix - three of the school's pupils - discover a suspicious man on the premises. Shortly after this unsettling event, pupils begin to go missing.

In a French boys' school, three friends form a secret society. Their objective - going to America. At night, after one of their secret meetings, one of them sees a man coming out from a wall. The day after he talks about it, he disappears. Then the second boy vanishes. Then the art teacher is murdered. Suspicions now are high, so the third one decides to investigate.—Jean-Marie Berthiaume <[email protected]>