Meanwhile, there are fears that Gabriel’s intimate connection to the case may be skewing his professional ability to track down the perpetrator, and his personal relationships continue to impact on his work as he is given an ultimatum to face. The rest of Gabriel’s team are dealing with the conflict of their own personal and professional lives as they launch a thrilling, high-stakes operation to catch the killer. But are they targeting the right person? Gabriel makes one final connection in a desperate, last-ditch attempt to get to the truth.

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.

The first episode of Rellik airs on BBC One on Monday the 11th of September from 9:00pm to 10:00pm. More promotional pictures are available below.