After being exposed to a bizarre mixture of household chemicals, Pat Kramer begins to shrink. This baffles scientists, makes parenting difficult, warms the hearts of Americans, and captures the attention of a group of people who want to take over the world. This evil group plots to kidnap Pat and perform experiments on her so that they can eventually shrink everyone.

Bizarre nightmares plague Regan MacNeil four years after her possession and exorcism. Has the demon returned? And if so, can the combined faith and knowledge of a Vatican investigator and a research specialist free her from its grasp?