In 1927 Hollywood, a silent film star falls for a chorus girl just as he and his paranoid screen partner struggle to make the difficult transition to talking pictures.

A stranded carnival dancer takes on a corrupt political boss when she marries into small-town society.

Having to leave Melbourne in a hurry to avoid various marriage proposals, two song-and-dance men sign on for work as divers. This takes them to an idyllic island on the way to Bali where they vie with each other for the favours of Princess Lala. The hazardous dive produces a chest of priceless jewels which arouses the less romantic interest of some shady locals.

Conceited singer Garry Mitchell refuses to renew his radio contract, so agent Doug Blake decides to find a new personality to replace him. In New York, he finds Martha Gibson, a single mother with a great voice. He arranges for her to move to Hollywood, but then has a problem trying to sell her to the show's sponsor. Doug tries every trick he can think of to make Martha a star, and as the two work more closely, he falls in love with her. Complicating matters further, Martha meets and becomes attracted to Garry.

G-men grab a gangster and a governor thanks to a clerk in the fingerprints division.

A federal agent and his partner track uranium-ore hijackers with radar.

A ghost helps the Bowery Boys capture a gang of crooks led by a mad doctor.