Holiday in Death

No one likes to be alone during the holidays. For New York's most posh dating
service, Personally Yours, it is the season to bring lonely hearts together.
But Lt. Eve Dallas, on the trail of a ritualistic serial killer, has made a
disturbing discovery: all of the victims have been traced to Personally
Yours. Eve soon enters an elite world of people searching for their one true
love - and one killer searching for his next victim.