At the time ,Chabrol was at the height of his powers ;the 1967-71 is now generally considered his heyday ; but there was a critical backlash circa 1971: what's the point of depicting the bourgeois life in "la femme infidèle" or "juste avant la nuit" , what's the point of making his characters fight this privileged class in such works as "que la bête meure" or "la rupture" ?.....when you are a bourgeois yourself; the director never denied it anyway. And who ,with the staggering exception of Bunuel , gave a better picture of the French bourgeois milieu in those years?
There was another "rupture" (breach) in 1971: Chabrol had always wanted to adapt Ellery Queen's murder mystery "ten day s wonder" ; bourgeois life was still here,but it took a back seat to the plot , a riddle based on the Bible no less; "la décade prodigieuse " ;one of Chabrol's own biggest disappointments ,it is better than its bad reputation,though.
"Docteur Popaul " aka " Doctor Casanova" continued in that vein, the murder mystery,but it took it to peaks of crudeness and bad taste;Hubert Monteilhet , whose novel was adapted, is closer to Rabelais than to Ellery Queen's finesse and dandiesque elegance .
With hindsight, "docteur Popaul " has not aged that much bad ; Chabrol wanted to dismantle the classic thriller plot , the set up , the final unexpected twist (which is so trendy today) is present ; black humor makes up for bad taste and Belmondo overplays with delight :he had just founded his own film company ,"Cerito". Dominique Zardi ,a Chabrol habitué , was cast as the bishop and wrote the awful ditties -he had already written the lilting "Capri Petite Ile" in "le boucher ",probably the director's masterpiece -.
Two thirds of the movie is a flashback (it was the first time the director had used this technique),the last third is some kind of "set up ,explanation and deus ex machina ",in the shape of a cleaning lady played by
another habitué ,Henri Attal , Zardi's pal)
A wholesale slaughter ,in which Claude Chabrol destroys the world he created in the precedent years;lambasted by an unanimous press, it was nevertheless ,probably because of "Bebel" , the director's biggest commercial success in his whole career.