Dia just cannot understand her mother's suddenly weird behavior after Dia shows her a photograph that fell from this stranger who keeps staring at her through the window of the bookstore where she works. The photograph bears a selfie pic of Dia and her best friend, Greet. The scribbling on the back of the photo makes no sense to Dia but upon reading it, her mother insists that it's time for them to pack their belongings and leave town urgently without...