I enjoyed this review and agree that Verdoux is a good film. It’s interesting that Orson Welles is credited with the idea - his friend Joseph Cotton starred in a very good Hitchcock film, “Shadow of a Doubt”, in 1943. There is a “merry widow murderer” in that film whose reputation closely resembles that of Chaplin’s character. Check it out - it is a disturbing drama with a sprinkling of comedy in Hume Cronyn’s character.