Dr. Eve Tsui has built her life around control—filtering the overwhelming sensory world through her hyperosmia, the rare condition that lets her detect molecular traces others can’t imagine. But when she catches the impossible scent of her sister Joy, who died mysteriously fifteen years ago, that careful control shatters. The trail leads her to a killer who doesn’t just murder his victims—he erases them completely, stealing and preserving their scent and consciousness like trophies in a twisted glass gallery. As bodies pile up, Eve and Detective Chen hunt for the impossible killer. But when her friend and business partner, Mira Patel is taken by him, Eve realizes she’s not hunting a serial killer—she’s facing something that challenges the very definition of what makes us human.