"Roman Mother" (Anna Melanie Anna Magnani) brings her 16-year-old son Ai Gouri (Ettore Garofolo) from the countryside to the city, where he has not seen his mother for many years, showing shyness and frustration. The mother played music in the room and invited her son to dance the tango. She buys and sells fruits and vegetables at the market in the city, always warning Ai Grape not to mix with his bad friends. Ai Grape was introduced by a friend to fall in love with a prostitute who already had a child, and sold his mother's old records in exchange for money to buy gifts for prostitutes. Mother was very worried about this, commissioned a friend to seduce Ai Gengli to make him forget the prostitute, and helped her son find a job, watching her son get on the right track day by day, the mother was very happy. At this time, her Roman mother's pimp found her and told Ai Grape about her unbearable dealings to extort money, and her Roman mother was forced to return to her old job.