Ella, an exceptional hypnotherapist concealing her true talents, takes an unassuming nocturnal servant position inside the foreboding Blackstone Manor. While outwardly working to pay her sister's exorbitant medical debts, her true mission is uncovering the dark crime buried eleven years ago beneath the cursed estate's stone foundations.
Inside the crumbling manor, she encounters an aristocratic family unraveled by madness, insomnia, and poisoned secrets orchestrated by an unseen predator. Healing the broken heirs one by one with subtle psychological therapies, Ella wins their trust while quietly gathering irrefutable proof to deliver an explosive reckoning against the murderer in their midst.
