Cecilia Rossetto

Clara Goldstein is a lovely, middle-aged Jewish woman who, because of an impending visit from her American brother, is forced to create a contrived relationship with a man of her own faith. She places an ad in a personals column and meets Raul, a well-spoken, handsome and charming man whom she soon discovers is a Gentile... (imdb)

A young working-class man comes from Misiones (an Argentinian province) to Buenos Aires, with a fighting rooster, looking for his brother, and gets involved with low life characters, who introduce him to a world of crime. Source: IMDB.