A haunted house? A wicked spirit? A dark curse? There's only one solution! Call on the powers of the Spectral Family! To deal with problems from the afterlife, Callum's parents created a hit TV program: Spectral Adventures. This time, they're headed to Hill Mortem, where a cruel entity is tormenting a young girl. Used to communing with the souls of the dead, Calum and his dog Opale soon find themselves out of their depth in what seemed at first a routine. Indeed, they are entangled in an ancestral struggle between Good and Evil. With the fate of all humanity hanging in the balance!