- Created By
Jack WilliamsHarry Williams
- First Aired on
Sep 11, 2017
- Popularity: 1.8418
- 54 votes
- Networks
- (GB)
- Production
New Pictures (GB)Two Brothers Pictures (GB)
- Status: Ended
Show Ended
1 seaons till Oct 16, 2017
Last episode: Episode 6
Seasons & episodes
Total 1 seasons, 6 episodes

Season 1
Aired
Episode 1Episode 160 min
DCI Gabriel Markham and his team are working to find a serial killer when a break in the case leads them to a potential culprit. Gabriel is torn between his conviction that they already know who the killer is and the seemingly irrefutable evidence found at the last murder scene.
Episode 2Episode 260 min
Gabriel comes face to face with the prime suspect in the serial murders, but his deep personal connection to the case could risk jeopardising his career. As a dangerous game of cat and mouse ramps up to a shocking climax, Gabriel begins to lose control.
Episode 3Episode 360 min
Gabriel and the team are dealing with the fact that another body has been discovered, seemingly the work of the serial killer. Questions are raised about Gabriel’s suitability to be leading this case, and the rest of his team have to step up to the plate when he's called away on a personal mission - one that strikes at the heart of his family.
Episode 4Episode 460 min
An unexpected tip off convinces Gabriel and his team to launch a risky mission designed to catch the killer in the act. Meanwhile, Elaine confronts the demons of her past. Gabriel is forced to face up to his changed self and the indelible mark left on him by the killer.
Episode 5Episode 560 min
The story of the acid murderer's first victim is revealed, as another suspect enters the frame. Gabriel receives some help in his investigation from an unexpected source - but is the situation more complex than it seems?