The small town of Highlands, North Carolina reels from the horrific Halloween night massacre. Detective Rachel Harroway pursues a killer planning another great attack. However, the only way to stop a monster is to know his weaknesses. With the help of one of villain’s freed captives, a gifted but traumatized orphan, Rachel digs deep into the Poisoner’s dark past while confronted by the most difficult choice of her life. The clock is ticking in this fast-paced, heartfelt mystery about tough choices, motherly love and the restless spirits of the dead.