An amateur tunesmith and a con man pool their resources in order to win first prize in a songwriting contest.

Story of an investment agent who embezzles a large sum from an estate, hoping to cover his crime by marrying the estate's heiress. The girl is already engaged, so he arranges to have the fiance killed. A mix up involving the society section of the newspaper places him in the sights of his own hired gun.

A conman poses as a war relief fundraiser, but when he falls for a charity worker, his conscience begins to trouble him.

Two actors who play detectives on the radio find themselves investigating a real crime masterminded by an arch-criminal named the Cobra.