Psychiatrist Martin Dysart is handed the most shocking case of his career when Alan Strang is entrusted to his care. Strang has blinded six horses with a metal spike, an eerie and terrifying act. The suspects in the psychological mystery that ensues include Alan's father, a man with a secret life, and the girl who was found hysterical on the night of the crime. The revelations lead doctor and patient to a climactic session in which the truth will be found, but at a price neither dares to contemplate