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 and the evidence found at the last murder scene.

Cast: Reece Ritchie, Jodi Balfour, Kieran Bew, Susanne Brown, Laura Camberley, Faye Castelow, Tina Chiang, Peter Coe, Richard Dormer, Rosalind Eleazar, Alex Gillison, Tuncay Gunes, Stephen Hawke, Michael Haydon, Susan Hughes