It’s interesting to consider if Cary Grant delivers a performance as subtly threatening as anything he’s done before. The narrative isn’t groundbreaking; it resembles a combination of "Gaslight" and "Rebecca," centering on a timid young woman, “Lina” (Joan Fontaine), who quickly falls for the charming “Johnnie” (Grant), leading to a hasty marriage. When his acquaintance, "Gordon" (Nigel Bruce), comes to visit, incons…