Immigrant radical Bartolomeo Romagna is falsely condemned and executed for a payroll robbery. Years later, his son Mio sets out to find the truth of the crime and to bring to account the gangster Trock Estrella.

Can Professor Higgins transform cockney flower girl Eliza Dolittle into a lady by teaching her to speak properly?

A New York City probation officer, noted for his sympathy with delinquents, put to a severe test when his daughter falls for a boy whom circumstances force into breaking the law.