When a girl named Jamie repeatedly tries to contact her grandmother to no avail, she investigates by going to her apartment in Omaha Nebraska - only to find that it's been condemned and overtaken by possessed children. As she digs deeper, she discovers a dark secret about her grandmother and awakens a dark, demonic force that wants Jamie dead and will stop at nothing.
Grace Rhodes, who is studying to be a doctor, returns to her hometown as a strange illness is afflicting the local children. The symptoms include a high fever and spasms, but even weirder is what happens the next day: All those with the illness claim they are somebody else -- then they begin murdering the grown-ups. After her sister undergoes the same sinister metamorphosis, Grace comes to believe there is some connection to an evil cult figure who may be returning from the grave.
Two young Gatlin residents are orphaned after the younger brother kills their father. The terror of Gatlin goes urban when the two boys are placed in the custody of two foster parents in the city. The younger brother takes some corn seeds along for the road and plants them in the courtyard of an abandoned warehouse, bringing "He Who Walks Behind the Rows" to the city.