Philippe, an unscrupulous 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 suffers from Alzheimer's and is accused of hatching a terrorist plot, a situation that 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.
The young researcher's slow and difficult progress takes an unexpected turn he crosses paths with William, a man at the head of a private neuroscience company, but who is somehow shrouded in mystery. William offers Philippe financial support, enabling him to make the breakthrough he's been working towards for years: he is finally able to access his father's memory.
But by peering into the dark reaches of his father's brain, will he indeed find proof of his father's innocence? And the identity of the terrorist?