Alfred Hitchcock remakes his own 1934 British thriller on a grander scale, with James Stewart and Doris Day as an American couple whose Moroccan vacation turns to nightmare when they witness a murder and their young son is kidnapped to ensure their silence about an assassination plot. The film builds with Hitchcock's trademark precision toward its legendary climax at London's Royal Albert Hall, where Day must decide whether to scream and save a diplomat's life at the risk of her child's. Featuring Day's Oscar-winning performance of 'Que Sera, Sera' woven ingeniously into the plot, this is Hitchcock operating at peak craftsmanship—a masterclass in sustained suspense that proves sometimes knowing too much is the most dangerous thing of all.