Actively sought by the army's secret services, a young outcast returns incognito to her hometown. She hopes to take refuge with her grandmother, but discovers that she died during her absence. However, she decides to stay in the deceased's apartment and finds work in a household appliance factory. Recently bought by a Korean industrialist, the company is in turmoil. There, the young woman meets a loud-mouthed worker, JP, a former drug addict and follower of Karl Marx, who gives her a nickname: "Machine". Thanks to the revolt brewing in the factory, the new recruit reveals surprising combat skills...