Docteur Petiot
A true story shot in a German Impressionistic style. In France during the Nazi occupation, Dr. Petiot (Michel Serrault) offered to help Jews escape the Nazis. They would come to his house, and he would kindly give them lethal "vaccinations" for their anticipated travel to Argentina. Then he would steal everything the brought with them (in addition to their up-front payment to him) and burn their bodies in his home-made crematorium.
Starring Michel Serrault, Pierre Romans, Bérangère Bonvoisin, Zbigniew Horoks, Olivier Saladin, André Julien, Nini Crépon, Maxime Collion, Aurore Prieto, André Chaumeau
It's a crime and drama movie, and has a rating of 6.8 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from United States.