In A Small Quiet Village In The Ardennes, A Sixteen-year-old Girl Disappears Into The Forest After Calling Her Teacher In The Middle Of The Night. Captain Gaspard Deker, A Former Soldier And Newly Arrived Single Father Is Conducting The Investigation With Virginie Musso, The Local Cop. Also Helping Is The Teacher, Eve Mendel, A Solitary Young Woman With A Mysterious Past: She Was Found As A Child By The Villiage Doctor Wandering Silently In The Same Forest.