Sarah is a struggling young woman living in Brooklyn. She agreed to voluntarily become the experimental object of a pharmaceutical company named Dynamic Health Cure, become the holder of LEXX, make money to solve her financial problems and take care of her mother with Alzheimer's disease. A nano chip was implanted in her cerebral cortex, designed to control the body, so as to control the disease as soon as possible when it occurs. However, when the artificial intelligence implant became evil and ordered her to commit a crime, Sarah fell into a killing vortex with only one choice: survival or death.