The mystery begins with static footage of the Laurent home, progressing to tapes displaying Georges’s childhood farm in the French countryside. Georges identifies the rural location and recalls Majid, whose parents were farmhands murdered in the 1961 Paris police massacre. Georges' parents intended to adopt six-year-old Majid, but young Georges, terrified of sharing parental affection, framed Majid: he told his parents Majid had coughed blood (claiming tuberculosis), and coerced Majid into beheading a rooster with an axe, convincing his parents the boy was dangerously disturbed. Majid was expelled to an orphanage, irrevocably altering his life.
Led by a cassette filming a rundown suburban apartment, Georges confronts Majid, who is now impoverished and ailing. Majid denies sending any tapes. Later, Majid summons Georges back to his flat. With flat composure, Majid says, "I wanted you to be present," draws a straight razor, and slices his own throat, collapsing dead across the floor. Terrified of being implicated, Georges flees the scene without notifying authorities, goes to a cinema to hide, and lies to Anne upon returning home. Later, Majid’s adult son confronts Georges at his TV studio, insisting neither he nor his father bore malice or sent the tapes, while holding Georges to task for his cowardice.
Unwilling to confront his culpability, Georges returns home, pulls down all bedroom blinds, strips in total darkness, and ingests sleeping pills to retreat into unconsciousness. The film closes with an unbroken, stationary wide shot of the exterior staircase of Pierrot’s school at dismissal. Amid a crowd of students, Majid’s son and Pierrot appear together in the bottom-left corner of the frame, conversing casually before parting ways. Haneke offers no dialogue, no narrative resolution, and no overt confirmation of their relationship, leaving the moral burden entirely on the viewer.