In this true story told through flashbacks, Christy Brown is born with crippling cerebral palsy into a poor, working-class Irish family. Able only to control movement in his left foot and to speak in guttural sounds, he is mistakenly believed to have a intellectual disability for the first ten years of his life.
An unhappy wife learns that her husband, Colonel Barclay, cheated her earlier fiance, leaving him disabled and in exile. After a fierce argument between them, the Colonel's dead body is found next to his unconscious wife in a locked room with no key, and with curious animal tracks outside the window. Nancy Barclay remains in a coma.Holmes investigates and finds a story of betrayal and a mystery worthy of his powers.