Production Companies: Phase 4 Productions , Place du Marché Productions , uMedia , Star Invest Films Production , Région Grand Est , Amazon Studios France , OCS , uFund , France Télévisions , Palatine Étoile 8 , SG Image 2021 , Conseil Département Du Loir-Et-Cher , CNC , WTFilms , Dark Sky Films .
Overview: When the disappearance of children and bloody murders multiply in a small mountain village, an old legend shrouded in sulphur reappears... Commander Guardiano and Captain of the Gendarmerie De Rolan are forced to join forces to uncover the truth.
, Place du Marché Productions , uMedia 
, Star Invest Films Production , Région Grand Est , Amazon Studios France 
, OCS 
, uFund 
, France Télévisions 
, Palatine Étoile 8 , SG Image 2021 , Conseil Département Du Loir-Et-Cher , CNC 
, WTFilms 
, Dark Sky Films 
.
