Unexpected Detour

Fifteen-year-old Justine Ross and her family travel to London, England for what is to be a three-week vacation. While they are there, Justine's father is to speak at a medical symposium. After they arrive, Justine notices a shadowy figure dressed in black which randomly appears wherever they are. She soon realizes no one else sees the mystery figure. To top it all off, she hears a voice tell her t...