DVD: Knock On Wood: Danny Kaye, Mai Zetterling

Jerry Morgan is a ventriloquist with a long trail of disastrous romances behind him - every time the affair gets close to marriage, his doll - Clarence - get jealous and spiteful and spoils it all! His fianceè walks out on him; his manager threatens to quit unless he sees a psychiatrist - and in a fury Jerry smashes Clarence and Terrance. He does see a psychiatrist - and they begin to fall in love. Jerry's doll-maker, Papinek, creates two new dolls for him but what Jerry doesn't know is that Papinek is a spy who's stolen the top secret plans for the Lafayette airplane. When he learns that Jerry is leaving for Zurich, Papinek hides the plans in Jerry's dolls - and there's a spy ring at the other end waiting to get their hands on Jerry's luggage! Confusion and pratfalls ensue as Jerry is chased by the spies and the police -who think he's committed a double murder!