Every so often I make my kids and my wife watch a one of my favorite old time movies like Citizen Kane or Casa Blanca. They usually raise eyebrows at my suggestions and say something smart alecky like, “Is it in black and white?” But they participate in the “what did you learn from this?” discussion that follows.
I think the next one will be Gaslight, the 1944 film, starring Charles Boyer and Ingrid Bergman. In the movie, the husband tries to drive his wife crazy using various deceptions including turning down the gaslights in the house.
The term is now used to describe similar emotional abuse and manipulations in marriages and relationships. Even smart people are susceptible to gas lighting. It occurs when you allow the other persons voice to outweigh your own memory and perceptions.