Xu Zai Zai, descendant of a martyr, is attacked by an unleashed big dog while walking his dog in the community. The dog’s owner arrives and bullies him with unreasonable excuses, even killing Xu’s dog. This causes a public uproar. Xu’s mother and grandmother argue for justice but get insulted and falsely accused by the dog owner. During the quarrel, Xu’s mother falls and later dies in hospital. The grandmother, blinded by grief, vows to call the police, but the dog owner abuses power to twist th