Ladro lui, ladra lei is a 1958 Italian comedy film directed by Luigi Zampa.
[1] Starring Alberto Sordi and Sylva Koscina, it tells the story of a young woman in Rome who is first sucked into a life of crime by a released convict and then has an awakening of conscience.
From a poor district beside the railway tracks, Cesira tries to earn a living as an ill-paid salesgirl but will not accept the male advances that go with the job.
This he gives to Cesira as a present but she, needing money not useless ostentation, sells it to a jeweller who is also a notorious fence.
Cencio dresses as a policeman, arrests the jeweller, empties his safe, and takes him to jail.