Thirty-five-year-old office worker Lin Wan is brutally laid off. After six months of job hunting, employers across the internet reject her for being too old! Setting aside all her pride, she enters a factory to work on the assembly line for a monthly salary of just 3,000 yuan, working diligently and answering every call. Until one payslip exposes the factory's true face. Everyone in the office receives social insurance, while ordinary assembly-line workers are kept in the dark and treated differently! The arrogant HR manager declares, 'If you can work, then work. If not, get out!' All her coworkers have resigned themselves to their fate. 'Just live one day at a time. Who knows if we'll even live long enough to collect our social insurance!' But this 35-year-old woman refuses to fear unemployment or oppression. She takes on the unscrupulous factory head-on, wielding the law as her weapon to fight for justice for every exploited worker at the bottom of society. So painfully real, every word speaks to the hearts of working people.