AllMovie

An innocent couple who were observing the "color" of a local festival begin to feel afraid because of the eerie happenings at the celebration, and they decide to get out of there before they too, are turned into a robotic shadow of their former selves. Their escape includes an interlude in a wooden coffin as they go through a cave along a subterranean river. (The film also features a lot of gorgeous scenery from the southern province of Ardeche with its photogenic Cevennes mountain range.) Winner of the Critics Prize at the 1982 Avoriaz Fantastic Film Festival.