Outside of partying and left behind by her friends after having a night, Ava sneaks to discover she's already safe in bed and wakes up. But that's not Ava - it's someone who looks like her. Even a fugitive gets stolen the own body, her identity, and also her life of Ava. What's more -- she isn't by yourself. There are still others, hiding in the past, covertly living among people, plotting to improve the near future. Without her entire body, Ava is a virtual ghost, imperceptible and silent to the world. And, as far as she knows, she's the only one that put the timeline straight back on course can stop them.