After the failure of his recent criminal exploits, international con artist Alexandre Dupré sets off for Venice to try to dupe some Japanese business men into buying a fake copy of a stolen Caneletto. On the aeroplane, a stranger asks him to look after his briefcase until after they have landed. Alexandre agrees, but the stranger is shot dead soon after and Alexandre himself becomes the target of enemy agents who are keen to recover the briefcase...
Jean-Paul Belmondo
Alexandre Dupré / Vicomte de Valombreuse
Mirella D'Angelo
Sophie Chaperon / Pamela
Michel Galabru
Achille Sureau, un ancien complice d'Alexandre
Carla Romanelli
Gina, ancienne amante et complice d'Alexandre
Paolo Bonacelli
Kamal
Georges Géret
Joseph, dit « commandant Donnadieu », un agent de la DGSE
Von Gretchen Shepard
Caroline
Pierre Vernier
Helmut von Ofenburg, pigeon de service
Michel Beaune
Louis Fréchet
Tony Kendall
Fredo
Maurice Auzel
Le franchouillard
Henri Guybet
Machavoine, l'espion plombier
