A gangster's son witnesses his father's violent crime, and a detective, realizing the boy may never reveal the truth in juvenile detention, takes him in as a foster child. The boy forms a bond with the detective's retired cop father, experiencing a sense of family and normalcy he's never known.
Streets of San Francisco
The detective takes in the emotionally scarred boy, opting to care for him rather than prosecute him, with the goal of aiding his recovery from the traumatic experience.