When five-year-old Rory unearths his estranged father's handmade crystal radio-which happens to patch straight through to Hell-violence and terror reign in the form of hellhounds, shadow figures, and demonic possessions.

Aided by a laconic fisherman and a charming warlock, Rory's mother, Rachelle, must track down her ex, the only person who can shut down the radio before the worst fiends of Hell are set loose on Earth.