A harrowing pathology of the soul, Mad Shadows centres on a family group: Patrice, the beautiful and narcissistic son; his ugly and malicious sister, Isabelle-Marie; and Louise, their vain and uncomprehending mother. These characters inhabit an amoral universe where beauty reflects no truth and love is an empty delusion. Each character is ultimately annihilated by their own obsessions.

Acclaimed and reviled when it exploded on the Quebec literary scene in 1959, Mad Shadows initiated a new era in Quebec fiction.