This is one of my favorite films from childhood: a family - not exactly normal because Doris Day is an internationally famous singer - on vacation get embroiled in a caper that is unusual and complex. It starts in Morocco, where they meet a friendly if circumspect Frenchman, who wheedles his way into their room for a drink. Thus starts an outlandish adventure that is completely believable while you are watching it, leading them back into Europe and into international intrigue.
I was a bit afraid that this wouldn't stand up to my memories, but it was as fun, even as moving, as I remembered it. James Stewart is an irascible surgeon - intelligent, controlling, and competent, perhaps over-confident. Doris Day, with her Que Sera song, is a rather hysterical housewife, who when confronted with the situation gets sedated, faints, and then steels herself to the task of finding her abducted son. They have real chemistry on the screen, even their fights exude an affection and respect for the other. I think they are one of the best couples in any Hitchcock film. Their fear and desperation are completely believable as they decide to avoid the authorities and attempt to solve the mystery and face the dangers on their own. OK, the kid is basically a kid, but he is cute.
Seeing it now, there were a few loose ends that I had hoped would be filled and weren't, including the political motivations of the conspirators. These are minor quibbles, however: this is a film of Hitch at the height of his powers, a masterpiece of craftsmanship that should be in the library of every collector.