On a typically gloomy day in London, Gina, a young and beautiful radiologist, is sure she just saw herself driving by--in her own car. When she follows her mysterious doppelganger into an unfamiliar apartment, she isn’t quite sure she can trust her own eyes until she spots a photo of herself and her father on the entryway table. Understandably spooked, she dashes back down to her car. Soon she finds herself in the hospital, unable to remember what has put her there or much about the strange woman. What Gina does know is her boyfriend seems different, the ceiling above the bathtub leaks blood in her dreams, and broken mirrors are becoming a recurring theme in her life. Increasingly paranoid, Gina is experiencing a bizarre and horrific version of her former life, and as things spiral out of control, she must escape from, or come to grips with, her new reality.