With Fred Astaire and Gene Kelly dominating this genre, it's easy to forget that Danny Kaye was actually quite an accomplished dancer and singer - and he demonstrates that quite charismatically in this rather daft spy caper. Here he also reminds us of just how popular ventriloquists were as his "Jerry" character finds himself embroiled in an international espionage ring that involves some top secret blueprints, his dummy's brand new head and the dastardly British industrialist "Langston" (Torin Thatcher). It's this latter man who turns out to want to acquire and sell on the plans - but there is no absence of competitors who are trying to entrap our hapless entertainer. Meantime, he begins to fall for the sceptical "Dr. Ilse" (Mai Zetterling) and she - slightly uncertain as to whether he's a bit screwy or not - soon finds herself equally involved in the increasingly farcical goings on in a fine Zurich hotel. It's all fairly predicable, borderline slapstick, fayre but there's a fair degree of agreeable chemistry between Kaye and Zetterling with both being quite adept on the dance floor and him delivering a couple of cheery, if not entirely memorable, numbers from Sylvia Fine. The production quality lets it down a bit if you happen to know anything about actually living in London, but there's still some humour in the writing that Kaye delivers quite engagingly as we build to a denouement straight out of "Sherlock Holmes" that takes a few pings at the international jet-set en route.