Leonard is lost. He's standing in an alley that he's never seen in front of a woman he's never met, and he has no idea how he got there. She's telling him he's about to die. There's a tracker in his neck and someone is hunting him so they can kill him. Why? Because that's just part of the game. But Leonard has no memory of any of this. In fact, Leonard has no memory at all. With only half a mind, and teamed up with a woman who seems...