It could just be coincidence. It also could be revenge.But hardened cop Frank Zimmerman doesnt believe in coincidences. Neither does FBI profiler Nathan Thomas.A drowned lawyer a fatal car accident a heart attack and a socialites lethal fall in front of a huge crowd all have their cop antennae pinging - hard.They dig for evidence to support his theory of a trail of bodies that lead into the past.Whats going on? And who will die next?