Philippe, a young neurology prodigy, is desperate to unravel the mystery of Alzheimer's disease. His sole motivation--which he keeps closely guarded--is to prove his father's innocence at all costs. His father, who suffers from Alzheimer's, has been accused of hatching a terrorist plot, and this cost his mother her life.
His relentlessness leads him to cross ethical and moral lines, to the great disappointment of his older sister, Camille, who has a secret of her own.