Doctor Dorothy Cobb is the country's leading expert in care of people living with dementia. After a harrowing tragedy leaves Dr. Cobb searching for a new purpose in life, she responds to a strange summons for help from Cotton Corner, a former-plantation-house-turned-nursing-home isolated in the dark Piney Woods of East Texas. Soon Dr. Cobb finds herself embroiled in a sinister mystery involving the evil history of the house and its residents... both alive and dead.