A young woman walks the streets of a foreign city - her mind full of pain, no memory of who she is and plagued by nightmarish visions. She meets a man who also has no memory. Forced to trust each other, the two feel a mysterious connection - a strong powerful feeling that bonds the two together. Unknown to them, their every action is being guided by unseen forces from the dark underground shadows of the city. They are part of a frightening experiment, an experiment with terrifying and shocking consequences. There is no escape in this dark psychological thriller.