Whilst watching Midsomer Murders tonight (not a village I would rush to move to, to be quite honest, as far too many people get bumped off there, if you ask me) the  story revolved around a group of boys who followed the idea of The Sign of Four from Sherlock Holmes to form their own group/gang. The father of the dead boy (long story) killed each of the, now adult, boys in turn in revenge for his son's death many years before and then committed suicide himself. Ring any bells?