The Lamp in Assassin Mews [1962] [DVD]

This early sixties British film is enjoyable thanks to the portrayals of the elderly brother and sister who want to halt all progress including the replacement of the last remaining gas street light. The light is located in their street, interestingly named Assassin Mews. The elderly siblings have a special aversion to vacuum cleaner door to door salesmen and are gleefully killing them off.

A community activist who wants more controlled development becomes acquainted with them. The "villain" in the movie is councilman Jack Norton who is a strong advocate for development and progress. So, the siblings decide to knock him off with amusing if predictable results.