La fièvre de l'or

Sylvain Théron, a gold digger, appears dead by the river. The investigation is complicated, since nobody in this world worthy of the Far West speaks with the police. Lea opts to infiltrate a member of his team and this is how in this episode we find Erwan pretending to be a miner. Who could wish the death of Sylvain Théron? Is your death related to gold fever? Or with your complicated divorce and your seriously ill child?