Two boys meet by the side of a road. A strange desire drives them to cross the volcanic landscapes of Auvergne together, like a huge treasure hunt. To probe the mysteries that inhabit the mountains, they tell old stories of condemned wizards, spells cast in secret, forgotten sabbaths. Haunted by these stories, they gradually become the protagonists, until these adventures reflect on the present of their meeting.

A secret organization prepares to hack a data center. To remain anonymous during their meetings, the hackers take on the appearance of missing members of the organization.