It was just another day for the young woman at the center of this story, and then the world around her went black. The next thing she knew, she was in the back of a truck with no memory of who she was or how she got there. She soon learns one terrifying truth, however: she's at the mercy of an unseen serial killer who's watching her every move. Guide this woman to safety by cracking codes, solving puzzles and escaping traps! Fail, and she could meet a horrific end.