You may have already met Deputy Chief Inspector Max Kauffman before in Pandora's Box (1974). Just in case you haven't, the head of New York's 16th Precinct (Central Manhattan) happens to be independently wealthy enough to afford a fourteen-room Sutton Place South apartment and a Beekman Place mistress. Not that that has anything to do with the case here which takes shape when a balloon explodes overhead during Macy's Thanksgiving Day parade. When several more blasts follow in the midtown area, ""The Christmas Bomber"" has to be taken seriously, particularly since he begins leaving little surprise packages for each of the ""Twelve Days of Christmas."" Some suspense but, sorry, wrong number.