When Arthur Flitwick (Steve Pemberton) finds an old mobile phone in his local graveyard, he makes the mistake of trying to contact the owner. But some mysteries are best left unsolved, and as Halloween draws near Arthur is plunged into a nightmare of his own making. It seems that no good deed can go unpunished, in this world or the next. Guest stars include Stephanie Cole.
This marks the 25th story from the Inside No. 9 team. Dead Line stars and is written by Steve Pemberton and Reece Shearsmith. The live episode is directed by Barbara Wiltshire and produced by Claire McCarthy. The series producer is Adam Tandy, the executive producer is Jon Plowman and the Commissioning Editor is Gregor Sharp for the BBC.