The Avengers

The duo covertly infiltrate an international conference, only to find that the delegates have taken to behaving oddly, each proclaiming the exact moment of their own death. Their investigation centres on this unsettling pattern of self‑prediction that spreads throughout the gathering.

Death’s Door is a television programme presented as a single episode. It falls within the episode‑type genre and carries the straightforward title that hints at the story’s focus on mortality. The production is listed simply as a programme, without any further classification beyond its episode format. The central narrative follows a pair of investigators who slip into an international conference under cover. While inside, they discover that the delegates have taken to an unsettling habit: each one is openly forecasting the exact moment of their own demise. This bizarre behaviour becomes the crux of the episode’s tension, as the infiltrating duo works to understand why the attendees are making such predictions and what consequences might follow. The episode stars Patrick Macnee and Diana Rigg, who portray the duo carrying out the covert operation. Their performances anchor the story, providing the audience with the perspective through which the strange conference unfolds. No additional cast, crew, or production details are supplied, keeping the focus squarely on the premise and the two leading actors who bring it to life.