Black Hand (1950 film)

Black Hand is a 1950 American film noir directed by Richard Thorpe and starring Gene Kelly as an Italian immigrant fighting against the Black Hand extortion racket in New York City in the first decade of the 20th century.

After the man that Giovanni Colombo had hoped would tell him about his fathers killers is murdered, Giovanni and Isabella work to rally people in Little Italy against the Black Hand racket, but that movement is dealt a setback when Giovanni is attacked and his leg is broken. Recovering from his injury, Giovanni decides to study law as his father had, with the help of Isabella, with whom he has fallen in love. But when Lorelli shows them evidence uncovered after a bombing of a local store, Giovanni puts his studies on hold to help track down the perpetrators. The trial that results comes to nothing when a key witness is intimidated and refuses to testify, but the defendant is ultimately deported when police in Naples identify him as a fugitive from justice there.Following the deportation, Lorelli travels to Italy to examine photographs of Italian criminals at large, in an attempt to identify other New York City gangsters that could be deported to Italy. He is attacked and killed in Italy, but only after he has mailed a list with the results of his research back to Giovanni in New York City. In an attempt to prevent this list from getting to authorities, gangsters kidnap Isabellas young brother. Giovanni is captured trying to save the boy, and reveals to the gangsters where they can find the list after they threaten to cripple the boy. After the gangsters get the list and the boy is released, Giovanni escapes and saves the list by igniting a bomb that he finds in the gangsters hideout. ........

Source: Wikipedia