When one drug in particular is licensed by the Government to be sold at certain pharmacists, Nat Ackroyd hardly expects a load to fall at his feet, especially in Cumbria's leafy lanes. But then Nat's prime motivation is to earn the right to call himself a villager. Maybe that fact has something to do with Jayne Middlemarsh, the young schoolteacher who was born and bred in FellBeck village – Lower FellBeck that is!
Not without good reason Nat therefore finds himself supporting Jayne at a charity event is organising for a sick child. But the news of Nat's extraordinary pillage has spread far and wide, especially after some of this drug is fed inadvertently to Ginger, Reggie Bentine's prize stallion, with quite surprising results!
Such news moreover is bound to attract the attention of a certain South American, who has recently rented a large property overlooking the lake and complete with its own swimming pool, although it must be said that this pool is certainly not intended for swimmers! This factor is of course in addition to the feelings of the folk living in the village's rival twin, Upper FellBeck.
The tranquil setting of the Lake District is further disturbed when the crime stoppers also decide that perhaps it is time for them to take a hand – !