Moonflower Murders' midpoint episode sticks to London, where Susan investigates what Alan Conway knew about the Frank Parris murder as DS Locke warns her to stay away from the case.
When a woman’s body is found in a tree in the woods, Ridley brings back Jean Dixon, who led the earlier missing person investigation, to join the team.
The Mark Gatiss episodes of the BBC's long-running A Ghost Story for Christmas are dropping the winter holiday from its moniker and will arrive on PBS Passport as Ghost Stories for Halloween.