Following Gabriel's discovery of a crucial piece of evidence, the hunt is on to track down the killer as the truth is finally pieced together. With the net tightening, a thrilling chase of twists and turns ensues, and as Gabriel begins to piece together the trail of violence leading to the killer, he ends up putting everything he holds dear at risk.
Gabriel and the team deal with the fact that another body has been discovered, seemingly the work of the acid attack serial killer. While questions are raised about Gabriel's suitability to be leading this case, the rest of his team have to step up to the plate and continue the investigation when he is called away on a personal mission that strikes straight at the heart of his family.
Premiere of a crime drama that follows the exploits of a serial killer told in reverse. In the opener, Detective Chief Inspector Gabriel Markham and his team are working to find a serial killer when a break in the case leads them to a potential culprit. Meanwhile, there are fears that Gabriel's intimate connection to the case may be skewing his professional ability to solve it.