A newlywed fears she's going mad when strange things start happening at the family mansion.

More than anything, “Gaslight” is a testament to Bergman’s acting skills. It’s remarkable that, as robust a presence as she is, she convincingly plays a timorous victim. Hollywood rewarded her with an Oscar and Alfred Hitchcock, who had made two analogous gothic thrillers, “Rebecca” (1940) and “Suspicion” (1941), in which Joan Fontaine coped with a sketchy spouse, cast Bergman in two upcoming pictures, “Spellbound” (1945) and “Notorious” (1946).
J. Hoberman
New York Times