Ever since her near-fatal drowning, Cassidy has been able to pull back the "veil" that separates the living from the dead and see ghosts. Her best friend is even a ghost. So things are already pretty strange. But they're about to get much stranger. When Cass' parents start hosting a TV show about the world's most haunted places, the family heads off to Edinburgh, Scotland. Here, graveyards, castles and secret passageways teem with restless phantoms....