In Manhattan, Thana is a timid and mute woman that works as a seamstress in the fashion industry and spends most of her idle time at home. One night, she gets raped in an alley while going back home after hours and when she arrives at home, she gets raped again by another criminal. However, she reacts and bludgeons the assaulter to his death with a flatiron. The disturbed Thana loses her sanity and uses a .45 caliber pistol to shoot men on the streets of New York. She dresses suggestively and roams the dark streets alone, wreaking vengeance upon anyone who tries to take advantage of her. Eventually, her secret life overflows into her regular life in the fashion industry.