
Plot
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.
Trailer
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Cast

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