Pier Ulmann lives from hand-to-mouth in Paris, between construction work and petty theft that he commits on behalf of Rachid, his only “familyâ€. But life catches up with him the day his father is found dead in the street after a long decline. The black sheep of a rich Antwerp family who deals in diamonds, he has left his son nothing, apart from the story of his banishment from the Ulmann family and a thirst for revenge.