After his wife is murdered by street punks, a pacifistic New York City architect becomes a one-man vigilante squad, prowling the streets for would-be muggers after dark.
Paul Kersey is again a vigilante trying to find five punks who murdered his housekeeper and daughter in Los Angeles.
Dortmunder and his pals plan to steal a huge diamond from a museum. But this turns out to be only the first time they have to steal it...
