Retirees Jodi and Martin have fled their home in Phoenix and absconded to a falling-down farmhouse on the edge of Navajo territory. They chose the remote location not for its peace and quiet, but to evade a malignant otherworldly entity named Pappaduffus who has been terrorizing Martin since childhood.
When a mysterious and catastrophic infection lands Martin in the ICU, his medical team traces his ailment to an absurd origin: the sting of a rare and deadly scorpion from the other side of the globe. Jodi suspects the work of Pappaduffus. As Martin’s condition deteriorates, Jodi realizes she must confront her husband’s demonic oppressor—and go through hell in the process—for any hope of pulling him back from the brink of death.