1. A man is attacked while trying to make a call from the village phone box.
2. A murderer leaves a message in the name of his victim at an airport reception desk. The victim's lover, who is the recipient, draws the conclusion that he is still alive. This is a plot point of middling importance.
In both cases the thing that has rendered the events implausible- going on vanishingly unlikely- is the fact that everybody now has a mobile phone.
The episode is only 15 years old.