Bloody London by Reggie Nadelson
As New York basks in a fine Indian summer, no one notices the feral teenagers in Central Park or the homeless living near the river. No one connects them to the dead Englishman in the swimming pool of the city's most exclusive apartment building, to the Russian gangsters who are buying respectability on the East Side, or to the series of murders in London. No one notices because everyone is at the party.