Paris, France, 1942, during the Nazi occupation. Robert Klein, a successful art dealer who benefits from the misfortunes of those who are ruthlessly persecuted, discovers by chance that there is another Robert Klein, apparently a Jewish man; someone with whom he could be mistakenly identified, something dangerous in such harsh times.

Alain Delon
as Mr. Robert Klein

Jeanne Moreau
as Florence

Francine Bergé
as Nicole

Juliet Berto
as Jeanine, Robert's mistress

Jean Bouise
as Seller of the painting

Suzanne Flon
as Concierge of rue des Abbesses

Massimo Girotti
as Charles, Florence's husband

Michael Lonsdale
as Pierre

Michel Aumont
as Jew Affairs Section Official

Roland Bertin
as Newspaper Director
CinemaSerf
Alain Delon is near his best as the eponymous, rather odious, art dealer quite happily fleecing the terrified Jewish community of their precious possessions at cut race prices as they make preparations to try and flee the Nazi occupation of Paris. It's when one such victim is leaving his elegant apa...