Chabrol quickly followed this success up with '' Les Cousins '' in 1958 . The film is a companion piece and a reversal to '' Le Beau Serge '' in many ways , such as having the responsible student Brialy now play the decadent and insensitive Paul while the reckless Blain now plays the hard-working law student Charles . In this film , the country cousin Charles arrives in the big city of Paris to live with his corrupt cousin Paul while attending school . This was the first of many Chabrol films to include characters named Paul and Charles , and later films would often include a female named Hélène . More so than his first film , '' Les Cousins '' features many characteristics that would be seen as " Chabrolian " , including the Hitchcock influence , a depiction of the French bourgeoisie , characters with ambiguous motives and a murder . It was also Chabrol 's first film co-written with his longtime collaborator Paul Gégauff , of whom Chabrol once said " when I want cruelty , I go off and look for Gégauff . Paul is very good at gingering things up ... He can make a character look absolutely ridiculous and hateful in two seconds flat . " '' Les Cousins '' was another box office success in France and won the Golden Bear at the 9th Berlin International Film Festival
9th Berlin International Film Festival
9th Berlin International Film Festival
Claude Chabrol