The setting is East Texas, where Peggy, a young nurse, works at an institution for the criminally insane. After her husband Danny is mysteriously killed in a car accident, she convinces herself that it was murder… and she knows the murderer by name… Jasper Johnson. When she gets notice from Marbelle Johnson, Jasper’s mother, requesting an impromptu meeting, she discovers that the filthy rich oil baroness believes Danny to have been the bastard child of her deceased husband, Charles Johnson.
Peggy, irreparably damaged from childhood by religious fanaticism, reluctantly agrees to exhume Danny’s body. Reeling with doubt, all the while fearing betrayal by the Johnsons, she finds herself bordering on insanity.
Shackled in darkness, Peggy throws herself into her work only to find herself face to face with a blonde haired, blue eyed schizophrenic in a straitjacket. Quite by circumstance she discovers that this patient, Morgan Dubois, who as a child was found burrowed in the ground in the Piney Wood Thicket, has a link not only to her late husband, but also to the aberrations of her mind.
As secrets are revealed and it becomes apparent that something or someone wants to silence their tongues, Peggy is forced to seek refuge with the Johnsons. Together, as death finds them, one by one, they set upon a perilous journey in search of truth. Deep in the heart of the Piney Wood Thicket, they stumble upon Cypress Creek and discover an existence older than time itself. Peggy, caught in a maelstrom of emotions, torn between two worlds, finds herself in a desperate battle, not only for her life, but for that of all of mankind.