A hunter on the lookout, the deer's slap of a stag, the mist engulfing the forest ... A vision for a haunting memory: a friend haunted by the stalking of a stag, penetrating into the heart of the forest to disappear Without leaving a trace. Shot in documentary conditions in the Cevennes, The black blood is transformed into a fantastic tale, to dig the dizzying obsession of a hunter for an invisible beast, forever stolen.