As the daring thief Arsène Lupin ransacks the homes of wealthy Parisians, the police, with a secret weapon in their arsenal, attempt to ferret him out.

Romain Duris
as Arsène Lupin

Kristin Scott Thomas
as Joséphine

Eva Green
as Clarisse

Pascal Greggory
as Beaumagnan

Robin Renucci
as Le duc de Dreux-Soubise

Patrick Toomey
as Léonard

Mathieu Carrière
as le duc d'Orléans

Philippe Lemaire
as Le cardinal d'Etigues

Jessica Boyde
as La femme aux diamants

Aurélien Wiik
as Jean Lupin