Gaslight is a superb example of a woman-in-peril suspense film. It is a psychological thriller, perfectly atmospheric, set in a foggy, dark London of the Victorian period.
Ingrid Bergman’s performance as a woman slowly losing her mind is great – she received an Oscar for it. She is the victim of games being played to make her doubt her sanity. (The term to gaslight someone to make them doubt themself comes from the movie’s title. It refers to the frequent dimming of the gas lights she sees.)
Charles Boyer is the devil trying to destroy his wife’s mind, and Joseph Cotten the dashing, intelligent inspector whose suspicions save the day. Angela Lansbury, at 18 years old, makes her screen debut in this very enjoyable, albeit old film.