First broadcast 8th January 2024.<br /><br />Nikki and Jack investigate murder resembling notorious serial killer's work.<br /><br />Emilia Fox - Dr. Nikki Alexander<br />David Caves - Jack Hodgson<br />Aki Omoshaybi - Professor Gabriel Folukoya<br />Alastair Michael - Velvy Schur<br />Trevor Kaneswaran - DC Leo Naziri<br />Anders Hayward - Lee Dunn<br />Laura White - Aysha Marsh<br />Casper Knopf - Young Lee Dunn<br />John Hannah - Dr. Charles Beck<br />Emily John - Mia Dunn<br />Rhiannon Jones - Cara Connelly (as Rhiannon May)<br />Jasmine Stewart - Uniformed Officer (as Jasmine M. Stewart)<br />Charlie Beck - PC Spencer<br />Joanna Burnett - PC Patel<br />Josette Simon - DCI Ford<br />Leo Staar - Calvin Dunn<br />Lasco Atkins - Policeman at Lake<br />Paul Keating - Dominic Johnson<br />Christopher Hatherall - Pat<br />Trevor Kaneswaran - DC Leo Naziri<br />Casper Knopf - Young Lee Dunn<br />Laura White - Aysha Marsh<br />Simon Pengelly - Armed Officer
