Ian Stone (Mike Vogel) is an American man who lives in Britain. One day, he gets attacked by something he believes to be a corpse and is pushed into the path of an oncoming train. Rather than dying, he awakens the next day in a life that has very similar characteristics to his previous life. This tortured cycle continues every day. Each day he is relentlessly pursued and murdered by some horrible force, only to wake up the next day in a life worse than his last. He slowly realizes that this is happening to him, and now he must figure out what is chasing him and how to stop it.