Joana Holmes is a homicide detective in the Eastern Suburbs of Sydney, who is haunted by the memories of her mother's brutal and untimely murder. Her partner Detective Rob Jensen is a good guy with a hero complex trying to protect Jo. When a killer leaves behind a string of murders, their lives are turned upside down. Jo starts to question whether this latest wave of murders is connected to her mother's murder; she delves deeper into both cases, leaving her with so many unanswered questions. In a race against time can detective Holmes and Jensen catch the killer before he strikes again? Has her mother's killer returned or has a new evil awakened?