Full-time mother Chen Ya faces a nightmare: neighbor Liu Fang sues her 100-day-old son for "inflicting bodily harm," demanding $67,000 in damages. Enduring neighborhood gossip and her husband Zhou Zheng's cowardly hesitation, Chen Ya remains calm and heads to court. On trial day, shock waves sweep the courtroom as Chen Ya places her swaddled infant on the defendant stand. Presenting birth certificates and vaccination records, she uncovers the truth: Liu Fang's teenage daughter fell while secretly dating and lied out of fear, prompting her mother to orchestrate a greedy extortion scheme. The judge dismisses the suit and orders an investigation into Liu Fang for false accusation.
Unrepentant, Liu Fang escalates her harassment: ambushing Zhou Zheng, posting smear videos online, and throwing scenes with her elderly mother. Pushed to the limit, Zhou Zheng sheds his timid nature to defend his wife, while Chen Ya's mother-in-law steps in to call the police. At the baby’s six-month celebration, Liu Fang sneaks in to steal a golden pendant and leave cursed hell notes, but Chen Ya catches her red-handed—yet still offers her a final dignified way out.
Ultimately, the family moves into a fresh neighborhood. Zhou Zheng changes jobs to become a responsible husband, Liu Fang’s daughter transfers to a boarding school, and a remorseful Liu Fang leaves town for work, sending a letter of gratitude. Through intellect and courage, Chen Ya protects her child and family, teaching everyone the true meaning of strength.
