NYPD detective Jacob Kanon is on a tour of Europe`s most gorgeous cities. But the sights aren`t what draw him he sees each museum, each cathedral, and each cafe through the eyes of his daughters killer. Kanon`s daughter, Kimmy, and her fiance were murdered while on vacation in Rome. Since then, young couples in Madrid, Salzburg, Athens and Paris have been found dead. Little connects the murders, other than a postcard to the local newspaper that precedes each new victim. Now Kanon teams up with the Swedish reporter, Dessie Larsson, who has just received a postcard in Stockholm and they think they know where the next victims will be. With relentless logic and unstoppable action, Postcard Killers may be James Patterson`s most vivid and compelling thriller yet.