Perhaps its just a matter of having two serial killers in a book that gets you on this list. James Patterson is known for his thrillers. In this case, Casanova and The Gentleman Caller are the two killers who are communicating and sharing information about their crimes. Alex Cross, who is Pattersons detective throughout many novels, works for the FBI and learns that his niece has been kidnapped by Casanova. Of course, he gets involved in the case to save his niece and uncover two ruthless killers.
One of the reasons this is such a great thriller is that with two serial killers, Cross and the reader can trust no one at all. Everyone is a suspect and this creates a tension between all the characters in the book. Everyone is a suspect and in true thriller form, some of the lead suspects end up as dead, which means we can finally trust them. The lack of trust means that Cross will eventually go off by himself to find the killers and be in danger from them. This was made into a movie with Morgan Freeman playing Alex Cross. The results were okay, but the book with all of its intricate plot twists is still far better. Pick it up and trust no one. Even though I normally HATE Patterson, this is one I loved.