After a successful train robbery a gang led by Little Walter gets cold feet and needs to get out of London quickly. Little Walter, his moll Bikini and the rest of the gang escape to a Cornish island where they plan to hide out in a monastery disguised as monks. After living the life of a monk the gang splits, some want to leave and spend their loot while others enjoy the benefits of a simple life. Wilfrid Brambell pops up as a crooked sailor named Phineas which adds another dimension, similar to a "Carry On" film (with many carry on actors within); it plays more like an Ealing comedy, yet it was actually made by the great 'Associated British Picture Corporation (ABPC)' as well as live action scenes at St Mawes and Portloe in Cornwall, England.—David Bond
Having pulled off the smallest ever train robbery, Little Walter and his crew decide to get out of London. The six of them set up business in a disused monastery off the Cornish coast, despite the fact that none of them really qualifies as a monk - least of all Walter's moll Bikini. Bit by bit, the quiet way of life starts becoming a habit.