A young woman, Anna, walks the streets of a foreign city, her mind full of pain, no memory of who she is... and plagued by nightmarish visions. Then she meets Morgan, 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. Unbeknownst to them, their every action is being guided by unseen forces from the dark underground shadows of the city. Anna and Morgan are part of a frightening experiment with a terrifying and shocking conclusion.