This story was pretty good. The story was very intriguing following "Casanova" and the Gentleman Caller. There are parts that are creepy because it is two males who are going after women, kidnapping them and in some cases the women chose to go with the two serial Killers. 
 Alex Cross is trying to figure out what happened to his niece who also was kidnapped by "Casanova". 
 The way these two stories are weaved together is brilliant and I have to say I was wrong about the identity of one of the killers. The other killer's identity comes out are like 200 pages. 
 I recommend this as a daytime read because it is very creepy to read right before bed. I would like to continue the Alex Cross series though.