The Watcher

How do you solve a case when there isn't a crime scene? When DI Melanie Watton and her team are called in to investigate a video recording that surfaces in a local school, they realise that they have a complex case on their hands. When the recording is studied by the Medical Examiner, it becomes apparent the team are now faced with a gruesome recording of a murder. Over the course of several minutes, the killer administers drugs before suffocating a man on camera. With no known crime scene, the team have nothing more than the video evidence in front of them and face a challenge to identify both the victim and the killer. But when a suspect is discovered Melanie and her are up against a killer who is more evil than anyone could have imagined...