This romantic supernatural thriller/horror revolves around the aftermath of an apocalyptic event that almost wiped out mankind, and left millions of ghosts in its wake. Roni (played by Bellan Thorne, of Disney fame) is one of the survivors, and 10 years after the calamity she starts to receive messages from the underworld. With the help of a classmate she descends into a mysterious shadow world, where she needs to solve some unsolved murders.