Summary

(No spoilers revealed)
McCaleb needs a new heart. He finally gets one but soon learns that its previous owner, Gloria, was murdered. He is asked by Gloria's sister to investigate the case.The investigation leads to 2 other murders performed by the same killer.  The intial theory of murder is given up when McCaleb realizes the killer had chosen his preys. The next step is to find out the reason of that choice. McCaleb is convinced there is a link between the victims. The closer he gets to the truth and the more in danger he finds himself. He thinks he is chasing the killer when it fact, it may be the other way around...