FBI Agent Pete Neal has a serial killer to catch. Jacksonville Jack has murdered thirty-four women in four cities. In previous existences Jacksonville Jack has been Seattle Sidney, St. Louis Lenny and Baltimore Bertie. Although the names sound like a joke this man is anything but a joker. He kills ten women in each city and then moves on.
As the weather in Jacksonville cools into halcyon days with warm sun and cold winds, Jacksonville Jack is working on choosing his next victim. As the calendar rolls on into the next year, Jack has selected his victim and is ready to roll. He is heading out to the Fleming Island part of Jacksonville and tonight Seattle Sidney is riding with Jack inside his head. Up ahead of them is a fork in the road and when they hit that fork then Sidney is going to be full of rage and all hell is going to break loose in Jacksonville over the next two days.
Pete Neal is at a wedding in Orlando and Molly Syracuse is on a stakeout for Jacksonville Jack with two young FBI agents. The stakeout is a long shot but there is a slight possibility that they might pull Jack in. Little does Molly know that Jack will drive right past her before midnight and after that he will unleash a trail of death that will stretch across both sides of the St. Johns River.