The film begins in a BBC studio with the 100th edition of "In Town Tonight". Flotsam and Jetsom open with a "topical number". Then there is an interview with a distinguished actor, which dissolves into a performance of one of his famous melodramas about a wicked moneylender etc.

In this musical comedy, the trouble begins when a carefree playboy steals the virtue of a young French maiden and is forced to marry her when her angry father, a financier finds out. The playboy is flat broke, but does the honorable thing. The newlyweds then board a ship and sail off to the States. They are accompanied by the girl's ex-fiance. The plan was for the young marrieds to get a divorce as soon as possible, but then the groom realizes that he really does love the girl. Happiness ensues

Calling the Tune offers a fascinating look at the fledgeling gramophone industry as it tries to solve the problems of reliable recording and production methods. 'I predict that the gramophone will be the democratic entertainment of the future' states unscrupulous record label boss Mr Gordon (Sam Livesey), who finally gets his comeuppance after one dirty trick too far against his rivals. If the film's love story is perfunctory, the real interest comes with watching performers of the day, from Henry Wood and his orchestra to George Robey and Charles 'the laughing policeman' Penrose laying down their recordings direct to record. And something very like a prototype laser disc makes a crucial appearance too.

Insurance agent-physician collects on policies of men murdered by a disfigured resident of the home for the blind where he acts as doctor-on-call.