Liv Reese wakes up in a taxi, not understanding where she is or how she got here. She gets to her house, but strangers have been living there for a long time. She reaches for the phone to call for help, only to discover it's gone. In its place is a bloody knife. Her arms are covered with scrawled messages, like graffiti on her skin: “Don’t fall asleep.” Two years ago, Liv worked as a writer for a fashion magazine, and now she is lost, even the city around her is not the same as the one she remembers. To her horror, Liv sees a crime scene report on the local news. The same message is written on the window in the victim's blood: "Don't fall asleep." What did she do last night? And why doesn’t he remember the last two years?