Hugh Sinclair does a workmanlike job here as the enigmatic "Simon Templar" who just wants to take a peaceful holiday. There's not much chance, though, when he becomes embroiled with a mysterious plot to obtain a rather plain looking musical box. When he discovers that it's none other than his arch-foe "Hauser" (Cecil Parker) who wants the thing, his interest is piqued. What's so special about it? With the help of his stalwart "Monty" (Arthur Macrae) they are soon on it's trail - despite the frequently irritating interventions of pushy journalist "Mary" (Sally Gray). It's that latter effort that...