Ernest Wright's peerless prowess as a locksmith comes to the attention of a tough big-time crook, who feels that the little man would be a valuable asset to his crime kingdom. In order to inveigle him into a series of jobs, he sets up a beautiful hostess as a trap, into which the hapless Ernest inevitably falls..!
Charlie Drake
as Ernest Wright
Nyree Dawn Porter
as Muriel
George Sanders
as Guv'nor
Eddie Byrne
as Johnny Domino
Percy Herbert
as Nosher
Dennis Price
as Grantley
Patrick Cargill
as Museum Guide
Ronnie Barker
as Yossle
Wanda Ventham
as Sandra
Finlay Currie
as Feathers
Geoffrey Keen
as Magistrate
George A. Cooper
as Fred
