A group of prisoners are encouraged to form a jazz band and vow to go straight when they are released to tour the country. However, the trumpets and clarinets are just a cover for a series of robberies. Musical comedy, starring British jazz star Acker Bilk as himself, alongside Jimmy Thompson and Jennifer Jayne.
| Actor | Role |
|---|---|
 Acker BilkSelf | Self |
| CColin SmithFlash | Flash |
| JJonathan MortimerFingers | Fingers |
| RRonald McKayScouse | Scouse |
| RRoy JamesDippy | Dippy |
| SStan GreigHaggis | Haggis |
| EErnest PriceThe Mole | The Mole |
 Geoffrey SumnerThe Governor | The Governor |
| JJimmy ThompsonDandy | Dandy |
 Jennifer JayneAnne | Anne |
 Arthur MullardGetaway | Getaway |
 Maudie EdwardsThe Duchess | The Duchess |
| CCharmian InnesMrs.Van Der Ness | Mrs.Van Der Ness |
 Michael PeakeChief Warder | Chief Warder |
 Totti Truman TaylorWoman | Woman |
 Marianne StoneCleaner | Cleaner |