As the small town of Millfield is plagued by a string of brutal murders, teenage Abby is struggling to come to terms with the accidental death of her father. As she navigates the difficult emotions and memories that come with the loss, Abby begins to suspect that the mysterious killer stalking her hometown may be closer to home than she ever imagined. Her suspicions are confirmed when she discovers that her mother's new romantic interest, the seemingly friendly and kind-hearted Mr. Johnson, is in fact the killer. In a race against time, Abby must gather evidence and confront her mother's new love before he strikes again, all while trying to cope with the trauma of her father's death and the weight of her newfound knowledge.
