Ondes de choc

A few minutes before Benjamin Feller kills his father and mother in cold blood, he sends his intimate diary to his French teacher, in which he explains and confesses his crime. The teacher is questioned by the authorities and is soon confronted with her own doubts. What if her taste for literature, obsessed with the suffering of the human soul, has blinded her to the plight of her pupil and to what was hidden in the feverish prose he had shown her long before his crime?