In
Montreal, fashion model Kelly-Anne attends the trial of Ludovic Chevalier, accused of broadcasting his murder of three teenage girls in a "Red Room", a chat room on the
dark web where people pay to watch
snuff films. The case has become a
media circus and attracted the attention of both the press and "fans" of Chevalier, some of whom believe he is being framed due to his reticent demeanor. Despite the
FBI's submission of two snuff films to the Canadian authorities, doubt is cast over the killer's identity due to their use of a
balaclava while filming them. Kelly-Anne bonds with a neurotic "fan" of Chevalier's, Clementine, a younger woman who has hitchhiked to Montreal to attend the trial. Having grown close due to their mutual fascination with the case, Kelly-Anne invites Clementine to live with her for the duration of the trial. While Clementine passionately defends Chevalier in conversation, Kelly-Anne remains distant and taciturn. Kelly-Anne reveals that the majority of her income comes from online gambling. She further reveals a proficiency in computer technology, having programmed her own
AI which she has named
Guinevere. Unbeknownst to Clementine, Kelly-Anne has begun
cyber-stalking Francine Beaulieu, the mother of Camille, Chevalier's youngest victim and the only girl whose snuff video has never been found. On the day that two of Chevalier's snuff films are to be played in court, the public gallery is forced to leave. An upset Clementine expresses disappointment that she will not be able to see the films, believing they will prove Chevalier's innocence. Kelly-Anne reveals she has already obtained and watched the films via the dark web, and that they contain proof Chevalier is the killer. Kelly-Anne and Clementine return to the former's apartment, where they watch the videos together. Kelly-Anne points out the masked killer has Chevalier's distinct blue eyes and unusual
gait. Clementine begins weeping at the brutality of the videos; visibly disturbed, she decides to skip the rest of the trial and buys a bus ticket home. As she leaves, Clementine asks Kelly-Anne why she is so fascinated with the case; the latter cannot reply. On Chevalier's birthday, Kelly-Anne attends court wearing a wig, colored contact lenses, and the uniform Camille was murdered in to resemble the girl. Kelly-Anne is forcibly ejected from the courtroom; as she leaves, the normally rigid Chevalier waves and makes eye contact with her. That night, Kelly-Anne's modeling agency fires her for the stunt. Kelly-Anne makes contact with a dark web hacker, who has obtained Camille's snuff video and is planning to auction it. After proving her identity and ability to bid, Kelly-Anne is welcomed into the auction. Though the bidding initially rises above what she can pay, Kelly-Anne wins a last-minute hand of poker and uses the proceeds to win the snuff film. Suspicious that her activities have been monitored via Guinevere, Kelly-Anne destroys the AI in her blender and watches the film. That night, Kelly-Anne breaks into the Beaulieus' home. After posing for
selfies in Camille's room while wearing her schoolgirl uniform, Kelly-Anne leaves a flash drive containing the snuff film in Francine's bedroom. Some time later, a news broadcast reveals that Francine turned the flash drive over to the police. Camille's snuff film contains irrefutable proof that Chevalier is the murderer; he subsequently changes his plea to guilty. Back home, Clementine gives an interview to a journalist in which she describes herself as an "ex-groupie" and expresses regret for having supported Chevalier, saying she can now only think about his victims. ==Cast==