A new witness tells Hardy and Ellie their story. This information turns Ellie and Hardy's understanding of Trish's case upside down. Katie discovers a crucial new link between the case and a key suspect. Ellie and Hardy investigate the suspect's alibi more closely and find worrying inconsistencies. Beth tells her supervisor about Trish's case. Their discussion leads them to come forward to Ellie and Hardy with new revelations. Lucas reveals what he saw on the night of the party. Jim reacts violently, telling him to keep his mouth shut. A call from the owner at Axehampton forces Ellie and Hardy to hurry back to the grounds of the house once more.
Elenco: David Tennant , Olivia Colman , Jodie Whittaker , Andrew Buchan , Charlotte Beaumont , Arthur Darvill , Arthur Darvill , Carolyn Pickles , Charlotte Beaumont , David Bradley , Joe Sims , Jonathan Bailey , Matthew Gravelle , Pauline Quirke , Simone McAullay , Vicky McClure .