The funerals approach, and without the answers he needs and still more questions being thrown up, Stan's efforts remain fruitless. All looks lost for Stan and Mick solving the case, until a vital witness comes forward.

Cast: Alexa Davies, David Bark-Jones, Freddie Fox, Alfie Allen, Mark Addy, Andrew Frame, Scott Reid, Sean Gilder, Gemma Whelan, Oliver Dimsdale, Richard Goulding, Oliver Zetterström, Amy-Jayne Leigh, Millie Brady, Tom Christian