While vacationing in St. Moritz, a British couple receive a clue to an imminent assassination attempt, only to learn that their daughter has been kidnapped to keep them quiet.

Johann Strauss Jr. is forced by his father to forget music and to work in a bakery, where he falls in love with Resi, the baker’s daughter. The girl gets…

The theft of a famous painting leads to murder and many suspects on a plush train speeding from Paris to Rome.