Arsène Lupin decides to run a detective agency in addition to being a gentleman thief. As a detective he happens to cooperate with police in order to unveil the criminal activities of a villain. When he succeeds the villain returns the favour. The unmasked Arsène Lupin manages to escape with the villain's gangster moll as his new companion.
Director:
Jules Berry
Barnett, alias Arsène Lupin
Gabriel Signoret
L'inspecteur Béchoux
Suzy Prim
Olga Vauban
Rosine Deréan
Germaine Laurent
Aimé Simon-Girard
Le journaliste
Thomy Bourdelle
Cassire
Mady Berry
Victoire
Abel Jacquin
Brémond
