Crooks Anonymous (1962)

Forsdyke, a pathological petty thief subjects himself to a strict correction course run by a wealthy ex-con Widdowes and his Crooks Anonymous organization. Forsdyke's young and innocent girlfriend Babette, holds the hopes for his recovery and promises that she'll marry him if he'll reform. However, Forsdyke loses control when he's locked in a department store over Christmas.