One night, John Stoll was woken up from his sleep and the police car sent him directly to prison. During the trial, the lawyer asked him, "are you afraid?" John replied, "of course I'm not afraid. I haven't done anything. I haven't done anything if you've interrogated me ten thousand times." However, the innocent John Stoll was not released until twenty years later. The documentary "Witch Hunt," about dozens of parents convicted of child abuse in a small town in the United States, was screened at the Fox Cinema in California on April 28. Witch Hunt examines the impartiality of the entire American law enforcement system through a small-town case. This is not just the story of John Stoll, when dozens of parents were charged with child abuse. They are all good law-abiding citizens of the United States and good parents who love their children. all of them have not committed sexual assault or other crimes against their children, but they are baselessly charged and convicted in the absence of sufficient evidence. Decades later, these parents were released, but their lives and the lives of their children were rewritten forever. Through this documentary, the audience can really feel that the real crime in this incident is not interference and persecution, but oppressive politics that people are unable to resist.