Mary Dubois’s quiet life as a writer is shattered when the Sureté du Québec arrives at her door. A killer is staging gruesome tableaus in the Québec wilderness, and he’s left a message: he will only speak to Mary. A former profiler, Mary is forced out of her hard-won seclusion to hunt a monster who seems to know her every move, her every weakness.

Reunited with her ex-lover, Officer Teresa Cook, and navigating the open hostility of her old tormentors in the police force, Mary is drawn deeper into a web of psychological warfare. The killer’s notes are not just clues; they are invitations into a shared, violent history she never knew she had. To stop the slaughter, Mary must unpack the darkest secrets of her own past and confront the horrifying truth: the monster she’s hunting may share her blood.