Gaslight

I watched an old movie today named "Gaslight."  The movie is a black and white mystery thriller from 1944.  In case you didn't know, gaslight is also a verb for ruthlessly manipulating an individual, for nefarious reasons, into believing that they are going crazy or imagining things.  The story takes place before electric lights.  Houses are lit with gas lights.  If someone in the house lights another light, it can make the light currently burning go dim.  If the lights go dim when no one else lights a lamp, how can that be explained except by insanity?  As old as this movie is, it totally stands up as great entertainment.  Ingrid Bergman and Charles Boyer are the main characters.  At one point in the show, Ingrid gives Charles a talking to that made me want to stand up, pump my fist, and say, "That is right!  You go girl!"  You should see it.