The host of a radio crime show finds himself mixed up with real gangsters after he re-creates a notorious murder on the air. He uses his knowledge of criminology to foil the gang's wicked scheme.

Prince Tonio of Bothalia, a mythical kingdom in the Balkan Mountains, escapes an arranged marriage to Princess Athalia, the elderly daughter of a neighboring king. Filled with wanderlust, he becomes a sailor and goes to San Francisco where he meets a young singer...