The movie centers upon the brother and sister pair Tony and Tia, whose surname they initially know only as that of their deceased adoptive parents, Malone. The children are placed in an orphanage, where they face difficulties stemming from their strange psychic/psionic abilities: Tony can psychokinetically move and control inanimate objects with the aid of his harmonica, while Tia can communicate telepathically to Tony, commune empathically with animals, and experience premonitions. Tia also possesses minor telekinetic abilities. She carries a "star case" with her at all times, which eventually reveals a strange map.
