The screenwriter of classics that include THE STRANGE VICE OF MRS. WARDH, ALL THE COLORS OF THE DARK and TORSO, Ernesto Gastaldi made his directorial debut with one of the most groundbreaking yet underseen gialli of them all: When a boy witnesses his father kill a woman during an S&M session, he'll grow into a disturbed young man tormented by images of violence, perversion, madness and murder.