Crooks Anonymous (1962 - United Kingdom) crime comedy

Fred Cox, who uses the assumed name and title of military Captain Dandy Forsdyke, is a compulsive criminal and liar. It is both of these issues that are a problem for his girlfriend, exotic dancer Babette La Verne, as she catches him in a lie that he has gone straight, it being a condition of her ever marrying him. It is then that she comes across an organization called Crooks Anonymous, led by reformed criminal Laurence Montague, with all of his employees, who are called Brother and Sister, also reformed criminals. With Babette's help, Brother Montague accepts Dandy into their intensive criminal reform program, it necessarily voluntary on Dandy's part. The program rules include he needing to stay for the entire length of the program once he accepts, and either unsuccessful in completing the program or returning back to a life of crime if he successfully completes the program are grounds for them to hand over his entire criminal dossier to the police. The questions then become whether Dandy will be able to lie or cheat his way through the program, and even if he is able to complete the program successfully and with all of the built-in post-program supports provided by the organization whether he will be able to live a straight life, a manner totally foreign in concept to what he is accustomed, even with the desired end goal of being able to marry Babette.