The Gaslighting Playbook — Step by Step

The term comes from a 1944 film in which a man methodically dims the gas lights in his home, then assures his wife she is imagining the change. Over the course of the film, he systematically dismantles her confidence in her own perceptions, her memory, and eventually her sanity — not through overt cruelty, but through the quiet, persistent rewriting of shared reality. The film gave a name to a form of psychological manipulation that had existed long before it: gaslighting. And in the eighty years since, it has become one of the most studied and most prevalent forms of relational abuse.The term comes from a 1944 film in which a man methodically dims the gas lights in his home, then assures his wife she is imagining the change. Over the course of the film, he systematically dismantles her confidence in her own perceptions, her memory, and eventually her sanity — not through overt cruelty, but through the quiet, persistent rewriting of shared reality. The film gave a name to a form of psychological manipulation that had existed long before it: gaslighting. And in the eighty years since, it has become one of the most studied and most prevalent forms of relational abuse.